VIRGINIA HOSPITAL CENTER MULTIMODAL TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VIRGINIA TABLE OF CONTENTS

Transcription

1 VIRGINIA HOSPITAL CENTER MULTIMODAL TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VIRGINIA TABLE OF CONTENTS Section INTRODUCTION Introduction... Study Scope... 2 Section 2 BACKGROUND INFORMATION Existing Transportation Facilities... Roadway Network... On Street Parking... 8 General Land Use Plan (GLUP)... 8 Existing Site Access and Description... 2 VHC Campus Parking... Off Site Parking & VHC Campus Shuttle... Section 3 MULTIMODAL TRANSPORTATION FACILITIES 8 Overview... 8 Census Data Mode-Share Information... 8 Existing Transit Services... 8 Section EXISTING CONDITIONS 30 Existing Traffic Counts Existing Conditions Operational Analysis... 3 Existing VHC Parking Demand Assessment... 3 Section FUTURE CONDITIONS WITHOUT DEVELOPMENT (202) Background Conditions... Future Conditions without Development Operational Analysis (202)... Section PROPOSED DESCRIPTION, TRIP GENERATION, DISTRIBITIONS & ASSIGNMENTS Proposed Site Redevelopment Description... Proposed Site Access and Circulation... Site Trip Generation Analysis... Site Trip Distribution and Assignment... 8 Parking/Loading... 0 Section FUTURE CONDITIONS WITH DEVELOPMENT (202) 0 Total Future Conditions... 0 Future Traffic Forecasts with Development (202)... 0 Operation Analysis of Future Condition with the Proposed Development... Page

2 Future Conditions with Development & Recommended Improvements... Traffic Signal Warrant Analysis... 8 Section 8 CONCLUSIONS AND RECOMMENDATIONS 80

3 VIRGINIA HOSPITAL CENTER TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VIRGINIA LIST OF FIGURES FIGURE TITLE Page - Site Location Map Plot and Location Map Existing Lane Use and Traffic Controls On-Street Parking Restrictions GLUP Map VHC Campus Zones On-Street Parking Locations and Supply VHC Shuttle Route and Pick-Up Locations Ballston-MU Station Hourly Ridership Ballston-MU Annual Passenger Boardings Bus Stops and Routes Map ¼ Mile Walkshed Arlington County Bike Map Existing Peak Hour Traffic Forecasts (20) Existing Peak Hour Pedestrian Forecasts (20) Existing Peak Hour Bicycle Forecasts (20) Existing VHC Parking Garage Occupancy Regional Growth Background Traffic Forecasts (202) Intersection Spacing Diagram Alternative Access Configurations Future Lane Use and Traffic Controls with Development Future Lane Use and Traffic Controls with Development (Alternative )... - Future Lane Use and Traffic Controls with Development (Alternative 2)... - Removal of Edison Site Trips... - Edison Site VHC Employees Removed Off-Site and New Employee Trips Assigned to Outpatient Pavilion Garage Employee Trips Reassigned to Outpatient Pavilion Patient and Visitor Trips Reassigned to Outpatient Pavilion... - New Hospital Trips New Outpatient Pavilion Patient and Visitor Trips Median Closure Trip Reassignments (Alternative Only) Median Closure Trip Reassignments (Alternative 2 Only)... - Future Traffic Forecasts with Development Future Traffic Forecasts with Development (Alternative ) Future Traffic Forecasts with Development (Alternative 2)... 3

4 VIRGINIA HOSPITAL CENTER TRAFFIC IMPACT ANALYSIS ARLINGTON COUNTY, VIRGINIA LIST OF TABLES TABLE TITLE Page 2- On-Street Parking Restrictions On-Street Parking Occupancy Neighborhood Modal Split Bus Stop Summary Bus Stop Ridership Information Sidewalk Width Summary Capital Bikeshare Station Ridership Existing Conditions Level of Service (20) Existing Conditions Queueing Summary (20) Future Conditions without Development Level of Service (202) Future Conditions without Development Queue Summary (202)... - Density Comparison Site Trip Generation... - Future Conditions with Development Level of Service (202) Future Conditions with Development Queue Summary (202) Traffic Signal Warrant Information... LIST OF APPENDICES APPENDIX A B C D E F G H TITLE Scoping Agreement Observed On Street Parking Occupancy Multimodal Information Vehicle, Pedestrian and Bicycle Traffic Counts Level of Service Descriptions Existing Level of Service and Queue Synchro Worksheets Future without Development Level of Service and Queue Synchro Worksheets Future with Development Level of Service and Queue Synchro Worksheets

5 VIRGINIA HOSPITAL CENTER Multimodal Traffic Impact Analysis December, 20 SECTION INTRODUCTION This report serves as an update to the Multimodal Traffic Impact Analysis (TIA), dated June, 20, to address Department of Environmental Services (DES) review comments received regarding the TIA and the. Site Plan. Detailed responses to comments have been provided under separate cover. The three (3) primary updates contained in this report include the following:. Expanded multimodal section detailing various transportation options available to both employees and patients/visitors. 2. An additional access scheme, herein referred to as Alternative 2, which assumes the existing northern VHC entrance on N. George Mason Drive is restricted to right-in right-out only with the exception of emergency and delivery vehicles. 3. A preliminary traffic signal warrant analysis for the proposed driveway on N. George Mason Drive serving patient and visitor parking in the new Outpatient Pavilion garage. This report presents the results of the Multimodal Traffic Impact Analysis for the proposed redevelopment and renovation of the (VHC) campus, located in Arlington County, Virginia. As shown in Figure -, the subject site is comprised of one block, bounded by th Street N. to the north, N. Edison Street to the east, th Street N. to the south, and N. George Mason Drive to the west, and includes the property directly north of the existing hospital (the Edison Site ). The Applicant proposes to construct a new 20,000 SF outpatient/ambulatory building on the Edison Site and convert approximately 20,000 SF of existing outpatient/ambulatory space on the VHC campus to 0 new hospital beds to meet the growing needs of the community. To implement the proposed redevelopment, the Applicant has filed a General Land Use Plan (GLUP) Amendment Application, a Rezoning Application, a Major Site Plan Amendment, and a Use Permit Amendment. It is noted that 20,000 SF was assumed for the new Outpatient Pavilion in this TIA. Therefore, the analysis should be considered conservative. As proposed, the Edison site will be razed and redeveloped with The Outpatient Pavilion of VHC and a new parking garage containing approximately 2,08 parking spaces. The Outpatient Pavilion of VHC is proposed to contain 20,000 SF of outpatient and ambulatory uses of which 20,000 SF is being relocated from the existing VHC campus and 30,000 SF is new space. The new parking garage will serve the proposed Outpatient Pavilion of VHC, existing VHC employees, and address an existing VHC campus parking deficiency. A new service road will provide an internal connection between the existing hospital campus and the new parking garage/loading area. A copy of the rendered site plan is shown in Figure -2.

6 Multimodal Traffic Impact Analysis December, 20 The current zoning designation for the site is a mix of S-D (Special Development District) for the existing VHC campus and S-3A (Special District) for the Edison Site. The subject parcels are designated as a Government and Community Facilities for the VHC campus and Government and Community Facilities, as well as Public Ownership for the Edison Site, on the Arlington County GLUP. The proposed GLUP Amendment would remove the Public Ownership designation from the Edison site. The existing VHC campus is currently improved with a total of,23 square feet (SF) of hospital uses (3 beds) and 8,8 SF of ambulatory uses (assumed herein as medical office). The existing VHC campus is served by approximately 2,0 parking spaces contained within three (3) parking garages and surface lots. Additionally, 0 parking spaces are leased offsite for VHC employees in Ballston in three (3) parking garages as well as other nearby parking lots, including the Edison Site. These offsite parking locations are served by a shuttle operated by VHC. The Edison Site is currently improved with approximately 8,00 SF of general office space and is served by surface parking. Upon completion of the redevelopment, the future VHC campus, with the inclusion of The Outpatient Pavilion of VHC, will include a total of,23 SF of hospital uses (0 beds) and 3,8 SF of outpatient/ambulatory space. Overall, the future VHC campus will be served by approximately,32 parking spaces (2,0 existing + 2,08 proposed displaced existing surface spaces). Study Scope A scoping meeting was held with Arlington County staff and identified study intersections for inclusion in the traffic study. The approved scoping document also identified the parameters of the multimodal traffic study and analysis methods. A copy of the approved scoping agreement is included in Appendix A. For purposes of this study, the build-out year was assumed to be 202. Tasks undertaken in this study include the following:. Reviewed proposed development plans, recently completed traffic impact studies in the vicinity, and other background data. 2. Completed a field reconnaissance of existing roadway and intersection geometries, traffic controls, speed limits, and adjacent on-street parking restrictions. Also observed current on-site hospital operations and circulation, parking conditions, and shuttle circulation and pick-up drop-off locations. 3. Conducted a comprehensive multimodal analysis of the site including transit, walkability, and bicycle facilities. The study determined what options, other than vehicular, are available to all users of the hospital complex. The study includes bus ridership information, metro ridership information, bike-sharing facilities, and pedestrian infrastructure inventory. 2

7 Multimodal Traffic Impact Analysis December, 20. Established a study scope and specific analysis parameters for the TIA with Arlington County Department of Environmental Services (DES) staff (see Appendix A).. Collected vehicular, pedestrian and bicycle counts at the study intersections during the weekday AM and PM peak periods.. Conducted operational analyses of existing levels of service (LOS) and vehicle queues at the study intersections based on the existing peak hour traffic volumes, the existing intersection geometries, and traffic controls.. Conducted a parking demand study for the existing VHC campus parking garages based on available gate data provided by VHC. 8. Forecasted future traffic volumes for the year 202 without the proposed development based on existing traffic volumes with the addition of regional traffic growth.. Analyzed 202 future LOS and queues without the proposed development at the study intersections and site driveways based on the future forecasts without development, the existing intersection geometries, and traffic controls. 0. Estimated the number of peak hour trips that would be generated by the build out of the proposed development based on standard Institute of Transportation Engineers (ITE) Trip Generation Manual, th Edition rates and driveway counts collected by W+A.. Prepared future traffic forecasts for study year 202 with the proposed development based on existing traffic volumes, regional traffic growth, and traffic associated with the proposed development, including new site trips and redirected site trips. 2. Analyzed year 202 future levels of service and vehicle queues with the proposed development at the study intersections and site driveways, based on the future traffic forecasts and future intersection geometries and traffic controls. 3. Identified traffic improvements/enhancements necessary to mitigate future forecasts as a result of the proposed development for 202 conditions, if required. 3

8 LEE HIGHWAY WASHINGTON BOULEVARD N. N. N. N. ROAD N. N. GLEBE ROAD O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure - Site Location and Study Intersections NORTH Arlington County, Virginia

9 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure -2 Conceptual Site Plan SOURCE: VIKA NORTH Arlington County, Virginia

10 Multimodal Traffic Impact Analysis December, 20 SECTION 2 BACKGROUND INFORMATION Existing Transportation Facilities Roadway Network. Vehicular access to/from the site is provided via three (3) curb cuts along N. George Mason Drive, one () along th Street N., and four () along N. Edison Street. Regional access to/from the site is provided via Lee Highway (US 2), Glebe Road (VA 20), N. George Mason Drive, Washington Boulevard (VA 23), Interstate, and the George Washington Memorial Parkway. Existing lane use and traffic controls at the key study intersections are shown on Figure 2-. A description of each roadway in the vicinity of the site is provided below along with estimated vehicles per day (VPD) based on published VDOT data, where available. Lee Highway (US 2) is classified as a Principal Arterial with a posted speed limit of 30 miles per hour (mph) in the vicinity of the site. Lee Highway is a major east-west connection through northern Arlington County, spanning from Rosslyn to the east, extending through Falls Church, before joining Fairfax Boulevard (US 0) in Fairfax County. N. George Mason Drive is classified as a Minor Arterial with a posted speed limit of 30 mph in the vicinity of the site. North George Mason Drive provides a north-south connection between Yorktown Road to the north and Seminary Road to the south. Primary access points for the VHC campus are located along N. George Mason Drive. N. Glebe Road (VA 20) is classified as a Principal Arterial with a posted speed limit of 30 mph. N. Glebe Road serves as a major north-south connection through Arlington County between the George Washington Memorial Parkway near Chain Bridge Road to the north and Jefferson Davis Highway (US ) near Ronald Reagan Washington National Airport (DCA) to the south. th Street N. is classified as a Major Collector with a posted speed limit of 2 mph. th Street N is broken into many segments providing a general east-west connection between streets through Arlington. The segment adjacent to the site generally connects Washington Boulevard/Patrick Henry Drive in the west to N. Glebe Road in the east. th Street N. is classified as a Local Street with a posted speed limit of 2 mph. th Street N. is broken up into many segments providing east-west connections between streets through Arlington. The segment adjacent to the site connects N. George Mason Street in the west to N. Culpepper Street in the east. N. Edison Street is classified as a Local Street with a posted speed limit of 2 mph. N. Edison Street serves as a north-south connection between Lee Highway in the north and Washington Boulevard in the south. It should be noted that the hospital s May 2000 approval restricts trucks serving the hospital from using N. Edison Street except for waste and oxygen pickups that occur adjacent to the Green parking garage.

11 2 N. ROAD N. N. ROAD N. 3 8 N N. DICKERSON N. DINWIDDIE 2 N. LEE HIGHWAY / N. / N. GLEBE ROAD WASHINGTON BOULEVARD / LEE HIGHWAY N. HIGHWAY LEE N. WAY 2 WAY 3 N. N. WASHINGTON BOULEVARD WASHINGTON BOULEVARD N. WAY WAY WAY 8 ROAD N. N. N. N. N. N. GLEBE ROAD N. GLEBE ROAD 3 WAY 8 N. N. WAY 0 WAY 2 3 N. Represents One Travel Lane Signalized Intersection Stop Sign NORTH O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure 2- Existing Lane Use and Traffic Controls Arlington County, Virginia

12 Multimodal Traffic Impact Analysis December, 20 On Street Parking The VHC campus is surrounded by on-street parking with varying parking restrictions. Table 2-, as shown below, and Figure 2-2 summarizes the on-street parking restrictions for the segments of roadways directly adjacent to VHC. No parking is permitted on the west side of N. George Mason Drive (southbound direction). Table 2- On-Street Parking Restrictions Street Block Segment Restriction N. George Mason Drive Blue & Gold Entrance th Street N. Hour Paid Parking N. George Mason Drive th Street N. Site Driveway North Unrestricted th Street N (north side) N. George Mason Drive N. Edison Street Zone 0 Parking th Street N (south side) N. George Mason Drive N. Edison Street Unrestricted N. Edison Street (east side th Street N. th Street N. Zone 2 Parking N. Edison Street (west side) th Street N. Site Driveway North No parking AM-PM N. Edison Street (west side) Site Driveway North Site Driveway Middle Unrestricted N. Edison Street (west side) Site Driveway Middle Site Driveway South Metered Parking N. Edison Street (west side) Site Driveway South th Street N. 2 Hour Paid Parking th Street N (north side) N. George Mason N. Edison Street Hour Paid Parking th Street N (south side N. George Mason N. Edison Street 2 Hour Parking Parking occupancy counts were collected at all of the above road segments on February, 20. The peak overall on-street parking occupancy occurred between :00 AM and 2:00 PM when 0% of the parking spaces were occupied. During this peak hour, excluding the residential Zone 0 and Zone 2 restricted blocks the parking occupancy was 3%. Thus, sufficient on-street parking is available adjacent to the site during the peak hour. The observed occupancy is summarized on Table 2-2 and detailed in Appendix B. Also, contained in the appendix is a map depicting the segments. General Land Use Plan (GLUP) The General Land Use Plan (GLUP) is an element of Arlington County s Comprehensive Plan and is the primary policy guide for future development within the County. The GLUP is used to establish the overall character, extent and location of various land uses. It serves as a guide to communicate the policy of the County Board to citizens, the business community, developers and others in the development of Arlington County. As mentioned previously, the current zoning designation for the site is a mix of S-D (Special Development District) for the existing VHC campus and S-3A (Special District) for the Edison Site. The subject parcels are designated as a Government and Community Facilities for the VHC campus and Government and Community Facilities, as well as Public Ownership for the Edison Site, on the Arlington County GLUP as shown on Figure 2-3. The proposed GLUP Amendment would remove the Public Ownership designation from the Edison site. 8

13 Table 2 2 Parking Occupancy Table Segment Multimodal Traffic Impact Analysis December, 20 N. George Mason Drive th Street N. N. Edison Street Segment A Segment B Segment C Segment D Segment E Segment F Segment G Public Parking Public Parking Residential Zoned Public Parking Residential Zoned Public Parking Residential Zoned Cars Cars % Occupied Cars % Occupied Cars % Occupied Cars % Occupied Cars % Occupied Cars % Occupied Cars % Occupied :00 AM 3 20% 0 83% 0% 3% % 0 % 2 % :00 AM 33% 0 83% 0% 3 2% % 0 % 2 % 8:00 AM 0% 2 00% 33% 3 2% 3 33% 3% 3 23% :00 AM 0% 2 00% 33% 3 2% % 0% 2 % 0:00 AM 8 3% 2 00% 2% 2 % 3 33% 0 % 2 % :00 AM 3% 2 00% 3 20% 8% 3 33% 3 8% 0 0% 2:00 PM 3% 0 83% 33% 83% 3 33% 2 80% 0 0% :00 PM 2 80% 2 00% 33% 3 2% 2 22% 2 80% 8% 2:00 PM 0% 2 00% 2% % 2 22% 3 8% 0 0% 3:00 PM 0% 0 83% 2% 0% 3 33% 0% 0 0% :00 PM 8 3% 0% 3 20% 33% % 3 20% 8% :00 PM 8 3% 8% 3 20% 2 % % 2% 2 % :00 PM 0% 0% 33% 22% % 2% 2 % :00 PM 0% 2 % % 2 % 8% 2 3% 0 0% Total Spcs Segment N. Edison Street th Street N. Segment H Segment I Segment J Segment K Segment L Public Parking Residential Zoned Public Parking Public Parking Public Parking Cars Cars % Occupied Cars % Occupied Cars % Occupied Cars % Occupied Cars % Occupied Cars % Occupied Cars % Occupied :00 AM 83% 23% 2% 38% 0% 0 38% 3 2% :00 AM 83% 2% 2 3% 8 0% 8 3% 8 8% % 8:00 AM 00% 8% 2 8% 8 0% 3% 0 8% 2 % :00 AM 00% 23% 2 % 88% 3 8% % 03 82% 0:00 AM 00% 3 % 23 82% 2 % 3 8% 08 % % :00 AM 00% 2% 2 3% % 3% 28 0% 3% 2:00 PM 00% 8% 2 % 2 % 2 80% % 0 8% :00 PM 00% 3 % 23 82% 3 8% 3% 3% 0 8% 2:00 PM 83% 3 % 23 82% % 3% 0% 02 82% 3:00 PM % 3 % 8% % 3 8% 8 3% 88 0% :00 PM 83% 3 % 3 % 3 8% 2 80% 2% 3% :00 PM 3 0% 23% 3 % 00% 3 8% 80 3% 3% :00 PM % 2% 2% % 2 80% % 8 % :00 PM 0 0% 32% 2 % % 2 80% 8 32% 3 30% Total Spcs Notes:. Parking occupancy counts occurred on Wednesday, February, Bolded values are used to show the peak hour of maximum parked cars. 3. The highlighted row is used to show the peak hour of maximum on street parking.. Street segment ID map included in Appendix B. Total Public Parking Only (No Residential Zoned)

14 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG ZONE 0 ONLY 8AM-PM WEEKDAYS N. 8AM-PM WEEKDAYS ZONE 2 PARKING N. DICKERSON METERED METERED 2 HOUR PAID PARKING N. DINWIDDIE ROAD N. N. ROAD N. HOUR PAID PARKING HANDICAP NO PARKING NO RESTRICTION ZONE 0 PARKING ZONE 2 PARKING PAID PARKING HOUR PAID PARKING N. 2 HOUR PAID PARKING Figure 2-2 On-Street Parking Restrictions 0 NORTH Arlington County, Virginia

15 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure 2-3 GLUP Map SOURCE: ARLINGTON COUNTY NORTH Arlington County, Virginia

16 Multimodal Traffic Impact Analysis December, 20 Existing Site Access and Description The existing VHC campus is served by four () curb cuts; two (2) on N. George Mason Drive and two (2) on N. Edison Street. The Edison Site is currently served by four () curb cuts; one () on N. George Mason Drive, one () on th Street N., and two (2) on Edison Street N. The VHC campus is divided into three (3) primary zones; Zone A, Zone B, and Zone C as shown on Figure 2-. Zone A is located in the southeast portion of the site and contains the main hospital building, emergency room, medical offices, and both surface and structured parking. Zone B, located in the southwest portion of the site, contains medical offices, the conference center, and both surface and structured parking. Zone C, occupying the northern portion of the site includes the oncology, the women and infant hospital, medical offices, and structured parking. A detailed summary of the existing VHC access points is described below. N. George Mason Drive/ th Street N./VHC Driveway (North). This site driveway is located at the unsignalized, full-movement intersection of th Street N./N. George Mason Drive. There is a dedicated southbound left turn lane for inbound VHC traffic. Separate left and right turn lanes are provided for hospital egress traffic. This driveway provides direct access to Zone C of the VHC campus. N. George Mason Drive/Site Driveway (South). This signalized intersection serves as the main access point to/from the VHC Campus. The driveway has two (2) ingress and two (2) egress lanes. A separate southbound left turn lane exists along N. George Mason Drive serving inbound traffic. Upon entry drivers turn left to access Zone C or right to access Zones A and B. N. Edison Street/Site Driveway (North). This stop-controlled intersection is for loading and service vehicles only. The entrance is gated with advisory signs restricting access. This driveway provides direct access to/from a maintenance building and loading docks including the trash area. N. Edison Street/Site Driveway (South). This driveway is aligned with th Road N. to the east and is a two-way, stop-controlled intersection. The driveway is gated and restricted for use by employees, emergency vehicles and loading only. Upon entering at this location, signs direct employees to the left into the employee parking area and direct loading vehicles to the right where the hospital loading docks are located. 2

17 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG ONCOLOGY CENTER DROP-OFF/PICK-UP WOMEN & INFANT DROP-OFF/PICK-UP P Subject Site Edison Site VHC Campus Zone A Zone B Zone C Signalized Intersection Existing Access Public Parking N. EDISON C P P B C C VHC P A N. MAIN DROP-OFF/ PICK-UP AREA P P EMERGENCY ROOM ACCESS N. DINWIDDIE ROAD N. N. VALET AVAILABLE IN GARAGE Figure 2- VHC Campus Zones 3 NORTH Arlington County, Virginia

18 Multimodal Traffic Impact Analysis December, 20 VHC Campus Parking The 2000 Special Exception for VHC included a total of 2,8 parking spaces. Subsequent to the 2000 County Board approval, the Zoning Administrator approved an Administrative Change Application for minor design modifications to the approved hospital renovation plan. The Administrative Change Application resulted in a parking reduction to 2,3 parking spaces. Over time, 2 parking spaces have been lost on the hospital campus due to the conversion of standard spaces to additional handicapped accessible parking spaces, restriping to improve on-site circulation, and the installation of gate systems in the parking garages. The VHC campus is served by three (3) on-site parking garages and multiple surface parking lots. In total, the VHC campus currently includes a total of 2,0 parking spaces (2 parking spaces for staff and,3 parking spaces for patients and visitors). Figure 2- highlights the locations of the parking garages and surface lot available to patients and visitors, as described below. VHC has recently installed dynamic parking counting software in each of the garages that reports the available parking real time. This data has been used to determine the existing parking demand of the garages and will be discussed in detail later in the report. Parking Garage A (Blue) is located in the southeast portion of the campus and contains,0 parking spaces. The Blue Garage primarily serves the main hospital and emergency room with elevators bringing visitors into the main lobby. The lower level of this garage is for employees only with gates separating the parking areas internal to the garage. Valet service is also available at this location. Based on gate information provided the parking garage reached capacity weekdays (Monday through Friday) with peak demand exceeding the available supply. The garage regularly reached practical capacity (0 percent of the total supply) between the hours of :00AM and 3:00PM. Vehicles within the valet and employees parking areas of the Blue garage are routinely double parking or stacked to accommodate the demand. Parking Garage B (Gold) is located in the southwest portion of the campus and contains 23 parking spaces. The Gold Garage primarily serves the medical offices located in Zone B, the conference center and the main hospital. Similar to the Blue Garage, based on gate information the parking garage reached practical capacity weekdays, Monday through Friday. Parking Garage C (Green) is located in the northern portion of the campus and contains 22 parking spaces. The Green Garage serves Zone C including the oncology center, clinic, medical offices, and women and infant hospital. A covered pedestrian bridge is provided, linking the garage to the hospital. Like the other parking garages on campus, this garage reached practical capacity weekdays on generally between the hours of :00 AM and 3:00 PM. Surface Parking is provided throughout the hospital complex, but is mostly restricted to handicapped, short term parking, and physician/employee. In general, visitor parking is not permitted in the surface lots.

19 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG N. PARKING EDISON SURFACE GREEN GARAGE VHC 2000 SPECIAL EXCEPTION: 2,8 SPACES LOST TO RE-STRIPING 8 SPACES & GATE INSTALL, ETC. EXISTING SUPPLY 2,0 SPACES GREEN GARAGE 22 SPACES BLUE GARAGE,0 SPACES GOLD GARAGE 23 SPACES SURFACE PARKING 23 SPACES EMPLOYEE PARKING N. DINWIDDIE ROAD N. N. SURFACE PARKING GOLD GARAGE BLUE GARAGE SURFACE EMERGENCY N. Figure 2- On-Site Parking Locations and Supply NORTH Arlington County, Virginia

20 Multimodal Traffic Impact Analysis December, 20 Off Site Parking & VHC Campus Shuttle In addition to the on-site parking provided, VHC leases approximately 0 parking spaces in three (3) nearby surface lots and three (3) Ballston parking garages for VHC staff. These locations are shown on Figure 2- and summarized below. Off Site Parking Locations 0 N. Glebe Road (served by VHC shuttle) 20 N. Fairfax Drive (served by VHC shuttle) 0 N. Fairfax Drive (served by VHC shuttle) Mount Olivet Site (served by VHC shuttle) Carlin Springs Site Edison Site VHC currently operates three (3) shuttle buses from :30 AM to :30 AM and from 2:30 PM to 0:00 PM providing connections to/from the off-site lots/garages specified above and the VHC campus. The shuttle service also provides connections to/from the Ballston-MU Metro station for VHC staff. Shuttle data collected by VHC on the day of the traffic count indicate that staff members ride the shuttle during the AM peak hour (2 to VHC, to parking/metro) and 2 (0 to VHC, 2 to parking/metro) staff members ride the shuttle during the PM peak hour. Based on historical ridership data provided by VHC, an average of 300 staff members ride the shuttle (2 to VHC, 8 to parking/metro station) on a typical weekday. Based on average weekday shuttle ridership approximately 0 employees (minus employees using the shuttle from Metro) park in the offsite lots requiring shuttle service. In the future with the redevelopment, these off-site parking spaces would be eliminated and provided on-site in the proposed parking garage. As noted above, the average daily usage of these leased off-site parking spaces is underutilized. This is likely due in part to the additional commute time it adds for employees. It could be assumed that some employees pay the nominal parking fee to park on-site verses parking off site and using the shuttle service. The peak hour trips associated with the off-site parking spaces would be reassigned to the VHC campus in the future. To provide a more conservative analysis, all shuttle riders have been assumed to park offsite even though some employee use the Metrorail.

21 WILSON BOULEVARD FAIRFAX WASHINGTON BOULEVARD N. N. GLEBE ROAD O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure 2- VHC Shuttle Route and Pick-up/Drop-off Locations 3. 0 N. GLEBE ROAD: 00 SPACES N. FAIRFAX : 00 SPACES 3. 0 N. FAIRFAX : 2 SPACES. MT. OLIVET : XX SPACES 2 BALLSTON METROSTATION NORTH Arlington County, Virginia

22 Multimodal Traffic Impact Analysis December, 20 SECTION 3 MULTIMODAL TRANSPORTATION FACILITIES Overview The subject site is served by multiple public transportation options including regional bus service; the Washington Metropolitan Area Transit Authority (WMATA) Metrorail system; a connected network of sidewalks and pedestrian crosswalks; bike-sharing systems; and on-street and trail bicycle facilities. The subject site is located in the High View Park neighborhood, bordering the Waycroft-Woodlawn neighborhood, within Arlington County. Both of these neighborhoods consist primarily of residential uses, with the exception of the VHC Campus, which is located in the southeast corner of the High View Park neighborhood. The VHC Campus has been a part of the community since 3 when the first 00 bed facility was constructed well before many of the surrounding homes. Census Data Mode-Share Information U.S. Census Data based on the American Community Survey for census tracts surrounding the hospital site were analyzed to understand travel patterns exhibited by local residents. A total of nine () census tracts were selected due to their proximity to the hospital. The average survey results of the selected census tracts indicate that 2% of commuters travel by vehicle, % by transit, 3% walk, 3% bike/other, and % work from home. Refer to Table 3- for a summary and Appendix C for detailed census mode-share information. Existing Transit Services Metrorail Service. The closest Metrorail Station is located approximately one () mile from the subject site. This station, Ballston-MU Metrorail Station, provides access to the Orange and Silver lines. The Orange Line runs between New Carrolton and Vienna. The Silver Line runs between Largo Town Center and Wiehle-Reston East presently. Future expansions of the Silver Line will extend the line to Loudoun County and Washington Dulles International Airport. Riders can take the Orange or Silver line to Rosslyn, Metro Center, and L Enfant Plaza for access to other lines. The existing VHC shuttle service includes a stop at the Ballston-MU Metrorail Station for employees. The WMATA Metrorail system operates seven () days a week from :00 AM to :30 PM on weekdays, 8:00 AM to :00 AM on Saturdays, and 8:00 AM to :00 PM on Sundays. The train headways at the Ballston-MU Station range from minutes during peak periods to 2-20 minutes during off-peak periods and weekends. According to WMATA s Metrorail Station Access and Capacity Study, the Ballston-MU Metrorail Station had the th highest bike rack utilization activity in 2002 out of the 8 stations studied (the Silver line was not open at the time of the study). 8

23 Multimodal Traffic Impact Analysis December, 20 The Ballston-MU Metrorail Station served an average daily ridership of approximately 2,33 passengers in 20 according to the publication Metrorail Hourly Ridership by Station (Arlington County, May 200). Refer to Figures 3- and 3-2 for hourly metrorail ridership and annual average passenger boardings at the Ballston-MU station, respectively. Bus Service. The VHC campus and nearby area is served by numerous bus routes operated by Arlington Rapid Transit (ART) and WMATA. Below are summaries of the routes that operate in close proximity to the site. ART Route (Ballston ) serves the site via bus stops along N. George Mason Drive. This route runs between the Ballston-MU Metrorail Station, past the VHC campus, up to Lee Highway. This bus line operates on weekdays from :0 AM to 2:30 AM, Saturdays from :0 AM to 2:3 AM, and Sundays from : AM to 0:3 PM with approximately 30 minute headways. The closest station servicing this bus line is located approximately. miles or three (3) minutes from the site. ART Route 2 (Ballston East Falls Church) serves the site via stops along N. George Mason Drive and th Street N. This route runs between the Ballston-MU Metrorail Station, past the VHC campus, up to Yorktown Boulevard and terminates at the East Falls Church Metrorail Station. This bus line runs operates on weekdays from : AM to :2 AM with approximately 30 minute headways during peak periods. The closest station servicing this bus line is located approximately. miles or three (3) minutes from the site. WMATA Metrobus 2A (Washington Boulevard Dunn Loring) has stops located approximately ¼ mile south of the site along Washington Boulevard. This route runs between the Ballston-MU Metrorail Station and the Dunn Loring Metrorail Station. It operates along Washington Boulevard before merging with Lee Highway. The bus line operates on weekdays, Saturdays, and Sundays with minute headways during peak periods. WMATA Metrobus 23A & 23T (McLean Crystal City Line) has stops located approximately ½ mile east of the site along N. Glebe Road. This route operates between the Crystal City Metrorail Station to the southeast and McLean Metrorail Station to the northwest. It runs primarily along Old Dominion Drive and Glebe Road and operates on weekdays, Saturdays, and Sundays with approximately 30 minute headways during weekdays and Saturdays, and 30-0 minute headways on Sundays. ART Route (East Falls Church Lee Highway Ballston) has stops located approximately ½ mile north of the site along Lee Highway. This route runs between the Rosslyn Metrorail Station and the East Falls Church Metrorail Station along Lee Highway (Route 2). The bus line operates on weekdays, Saturdays, and Sundays with minute headways during peak periods. WMATA Metrobus 3Y (Lee Highway Farragut Square) has stops located approximately ½ mile north of the site along Lee Highway. This route runs between the East Falls Church Metrorail Station and the McPherson Square Metrorail Station along Lee Highway eventually merging onto

24 Multimodal Traffic Impact Analysis December, 20 Interstate and crossing the Theodore Roosevelt Memorial Bridge into Washington DC. The bus line operates on weekdays with service only during peak periods and has headways varying from to 30 minutes. Refer to Figure 3-3 for the locations of bus stops and routes serving the VHC campus. Bus stops in the vicinity of the site are detailed in Table 3-2. Specific information for the above listed routes is located in Appendix C. Average weekday boarding and alighting data was provided by DES staff for bus stops nearby the hospital. Ridership data for these stops are summarized in Table 3-3 with the locations identified on Figure

25 Table 3 Neighborhood Modal Split Multimodal Traffic Impact Analysis December, 20 Mode Census Tract 00 Census Tract 002 Census Tract 00 Census Tract 00 Census Tract 00 Census Tract 008 Census Tract 00 Census Tract 00 Census Tract 0 Average Auto 2% 8% % 2% 8% 8% % 3% % 2% Transit % % 8% 2% % % % % 23% % Walk 0% % % % 2% 3% 3% 3% % 3% Bike/Other % % 2% 0% % 2% 3% % % 3% Worked at Home 8% % Notes:. Based on American Community Survey Year Estimate Data from the U.S. Census Bureau. % % % % 8% 8% % % Table 3 2 Bus Stop Summary Location Stop ID Busses Served Condition th Street N N Edison Street 008 ART 2 Sign, Information Case, No Seating, No Shelter, Overhead Street Lighting, Acceptable Sidewalk Clearance, No Trash Receptacles N George Mason Drive VHC 00 ART, ART 2 Sign, Information Case, Shelter with Seating, Overhead Street Lighting, Acceptable Sidewalk Clearance, Trash Receptacle N George Mason Drive th Street N 00 ART, ART 2 Sign, Information Case, Shelter with Seating, Overhead Street Lighting, Acceptable Sidewalk Clearance, Trash Receptacle N George Mason Drive 20th Street N 0 ART, ART 2 Sign, Information Case, No Seating, No Shelter, Overhead Street Lighting, Acceptable Sidewalk Clearance, No Trash Receptacles th Street N VHC 0 ART 2 Sign, Information Case, Shelter with Seating, Overhead Street Lighting, Acceptable Sidewalk Clearance, Trash Receptacle N George Mason Drive 20th Street N 203 ART, ART 2 Sign, Information Case, No Seating, No Shelter, Overhead Street Lighting, Acceptable Sidewalk Clearance, No Trash Receptacles N George Mason Drive VHC 20 ART, ART 2 Sign, Information Case, Shelter with Seating, Overhead Street Lighting, Acceptable Sidewalk Clearance, Trash Receptacle th Street N N Edison Street 2 ART 2 Sign, Information Case, No Seating, No Shelter, Overhead Street Lighting, Acceptable Sidewalk Clearance, Trash Receptacle th Street N N Buchanan Street 22 ART 2 Sign, Information Case, No Seating, No Shelter, No Overhead Street Lighting, Acceptable Sidewalk Clearance, No Trash Receptacles Washington Blvd N Evergreen Street 2008 ART Sign, Information Case, No Seating, No Shelter, No Overhead Street Lighting, Acceptable Sidewalk Clearance, No Trash Receptacles N George Mason Drive 22nd Street N 200 ART, ART 2 Sign, Information Case, No Seating, No Shelter, Overhead Street Lighting, Acceptable Sidewalk Clearance, No Trash Receptacles N George Mason Drive Lee Hwy 200 ART, ART 2 Sign, Information Case, No Seating, No Shelter, Overhead Street Lighting, Acceptable Sidewalk Clearance, No Trash Receptacles N George Mason Drive th Street N 2220 ART, ART 2 Sign, Information Case, Shelter with Seating, Overhead Street Lighting, Acceptable Sidewalk Clearance, Trash Receptacle Washington Blvd N Evergreen Street 222 ART Sign, Information Case, No Seating, No Shelter, Overhead Street Lighting, Acceptable Sidewalk Clearance, No Trash Receptacles 2

26 Table 3 3 Bus Ridership in the Vacinity of Multimodal Traffic Impact Analysis December, 20 Bus Stop ID Number Location March April May Boarding Alighting Boarding Alighting Boarding Alighting Average Weekday Ridership 008 th Street N N Edison Street N George Mason Drive VHC N George Mason Drive th Street N N George Mason Drive 20th Street N th Street N VHC N George Mason Drive 20th Street N N George Mason Drive VHC th Street N N Edison Street 22 th Street N N Buchanan Street Washington Blvd N Evergreen Street N George Mason Drive 22nd Street N 200 N George Mason Drive Lee Hwy N George Mason Drive th Street N Washington Blvd N Evergreen Street Table 3 Sidewalk Width Summary Street Name N George Mason Drive N George Mason Drive th Street N th Street N N Edison Street N Edison Street th Street N th Street N Section th St. N to th St. N (East) th St. N to th St. N (West) N. George Mason Dr. to N Edison St. (North) N. George Mason Dr. to N Edison St. (South) th St. to th St. (East) th St. to th St. (West) N. George Mason Dr. to N. Edison St. (North) N. George Mason Dr. to N. Edison St. (South) Existing Sidewalk Width (feet)

27 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure 3- Ballston-MU Hourly Metrorail Ridership for Wednesday May 2th, NORTH Arlington County, Virginia

28 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure 3-2 Ballston-MU Annual Passenger Boardings 2 NORTH Arlington County, Virginia

29 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG N. 3Y N ART ROAD N. 008 N. N. LEE HIGHWAY 22 23A 23T ART 2 N. GLEBE ROAD XX LEGEND METROBUS ROUTE ART 2 ART XX ART BUS ROUTE BUS XXXXX BUS ID # 2003 WASHINGTON BOULEVARD 2A 222 Figure 3-3 Bus Routes and Stops 2 NORTH Arlington County, Virginia

30 Multimodal Traffic Impact Analysis December, 20 Pedestrian Facilities. A majority of the streets in the High View Park and Waycroft-Woodlawn neighborhoods near the VHC campus contain sidewalks and marked crosswalks at signalized intersections. To the west of the site, some sidewalk segments are missing on residential neighborhood side streets but a connected grid of pedestrian infrastructure exists. The VHC site frontages along N. George Mason Drive, th Street N, N. Edison Street, and th Street N. all have sidewalks that are in good condition. The signalized intersection of th Street N./N. George Mason Drive has marked crosswalks on all four () legs of the intersection, pedestrian countdown heads, and ramps serving each crosswalk. The signalized VHC driveway along N. George Mason Drive has marked crosswalks on the northern and eastern legs, pedestrian countdown heads, and ramps serving the crosswalks. A marked crosswalk with ramps exists across N. George Mason Drive at the unsignalized intersection with th Street N. A midblock crossing with ramps is located along th Street N. in between N. George Mason Drive and N. Edison Street. Marked crossings with ramps also exist at the unsignalized intersection of N. Edison Street and th Street N. Figure 3- shows a ¼ mile walkshed from the corners of the site and Table 3- provides a sidewalk width summary adjacent to the hospital site. In order to provide an assessment of the site s access to pedestrian facilities and nearby amenities, the Walk Score was calculated for the site is included in Appendix C. The Walk Score is an analysis provided by the website and provides scores from 0 (worst) to 00 (best) for walkability. Based on its location, the subject site received a score of 0 which is classified as Somewhat Walkable Some errands can be accomplished on foot. Further the walk score provides a transit score of which is classified as Some Transit A few nearby public transportation options and a bike score of implying that the site is Bikeable Mostly flat, excellent bike lanes. The combination of sidewalks in good repair, marked crosswalks at the intersections around the site, installation of ramps to serve the crosswalks, on-street parking, and planting buffers enhance the pedestrian experience around VHC and encourage alternative modes of transportation. Car Sharing Services. There are currently no car sharing services, such as Zip Car, within a ½ mile radius of the site. Numerous Zip Cars are available in the Ballston area including adjacent to the Ballston-MU Metrorail Station which could be accessed by the VHC shuttle or public bus service. Bicycle Facilities. The VHC campus currently has bicycle storage facilities on-site and proposes to increase bicycle parking for all users as part of the proposed expansion and will meet the code requirement. Additionally, VHC is working with DES staff regarding a potential location for a future Capital Bikeshare station adjacent to the campus. According to the 20 Arlington County Bike Map, N. George Mason Drive, N. Edison Street, th Street N., and th Street N. adjacent are identified as on-street bike routes. A network of onstreet and off-street trails exist around the VHC campus providing connections throughout northern Arlington County. Refer to Figure 3- for the Arlington County Bike Map. The 2

31 Multimodal Traffic Impact Analysis December, 20 combination of on-street routes, dedicated bike lanes, off-street trails, nearby Bikeshare, and the on-site bicycle facilities create a bicycle friendly environment and encourage use as a non-auto mode. Capital Bikeshare is an automated bicycle rental or bicycle sharing program that provides over 3,00 bicycles at 0 stations across Washington, DC, Maryland, and Virginia. Membership, which is required to use Capital Bikeshare, includes five () options for joining: 2 hours ($8), three days ($), 30 days ($28), one year ($8), or one year with monthly installments ($, $8/month for 2 months). The first 30 minutes of use are free; users then are charged a usage fee for each additional 30-minute period. Bicycles can be returned to any station with an available dock. Within the vicinity of the VHC campus there is one () Capital Bikeshare station located approximately two (2) blocks south of the site at the intersection of Washington Boulevard/ N. Frederick Street, adjacent to Lacy Woods Park. There are a total of docks available at this location. Data provided by Capital Bikeshare indicates that the station was installed in March 20 and had a peak ridership rate of 88 total trips during the summer months. Ridership data for this station is summarized in Table 3-. Table 3- Washington Boulevard/N. Frederick Street Capital Bikeshare Station Ridership Month Origin Destination Total Trips 20-April May June July August 8 20-September October November December January 2 20-February March 3 8. Data provided by Capital Bikeshare. 2

32 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG 2ST N. 20TH N. 22ND N. ROAD N. N. N. CAMERON N. N. DICKERSON N. DINWIDDIE ROAD N. N. N. CULPEPER ROAD N. N. BUCHANAN N. ABINGDON N. TH N. N. GREENBRIER TH N. N. HARRISON 3TH N. N. FREDERICK WASHINGTON BOULEVARD N. EVERGREEN Figure 3- / Mile Walkshed 28 Sidewalk Pedestrian Crosswalk NORTH Arlington County, Virginia

33 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure 3- Arlington County Bike Map 2 SOURCE: ARLINGTON COUNTY NORTH Arlington County, Virginia

34 Multimodal Traffic Impact Analysis December, 20 SECTION EXISTING CONDITIONS Existing Traffic Counts Existing vehicular, pedestrian, and bicycle traffic counts were conducted by Wells + Associates on Wednesday, February, 20 from :00 to 0:00 AM and :00 to :00 PM at the following study intersections, per the scoping agreement. At intersections #2, #, and #, 3-hour traffic counts were collected (between :00 AM and :00 PM).. N. George Mason Drive/Lee Highway (US 2) 2. N. George Mason Drive/ th Street N. 3. N. George Mason Drive/Site Driveway (north). N. George Mason Drive/Hospital (Green) Entrance. N. George Mason Drive/Hospital (Blue & Gold) Entrance. N. George Mason Drive/ th Street N.. N. George Mason Drive/Washington Boulevard 8. th Street N./Site Driveway. N. Edison Street/ th Street N. 0. N. Edison Street/ th Street N./Site Driveway (north). N. Edison Street/Site Driveway (middle) 2. N. Edison Street/Site Driveway (south) 3. N. Edison Street/Site Driveway/ th Road N.. N. Edison Street/ th Street N.. N. Edison Street/ th Street N.. Glebe Road/ th Street N. The AM and PM peak hour vehicular, pedestrian and bicycle traffic counts are summarized on Figures - through -3, respectively. Detailed sheets containing the count data are included in Appendix D. Based on a review of traffic count data, the common peak hour of the adjacent road network around the site was identified as :30 AM to 8:30 AM and from :00 PM to :00 PM. Traffic volumes at each study intersection were reviewed and confirmed to be balanced to within 0 percent of the adjacent intersection, with the exception of the th Street N. George Mason Drive intersection during the PM peak hour which was balanced up to within 0 percent of the adjacent intersection to the north (VHC signalized entrance). A review of the vehicular count data indicates that the link of N. George Mason Drive, adjacent to the site, currently carries approximately,82 AM peak hour trips and, PM peak hour trips. The link of N. Edison Street, adjacent to the site, currently carries approximately 80 AM peak hour trips and PM peak hour trips. The link of th Street N., adjacent to the site, carries 3 AM peak hour trips and 3 PM peak hour trips. Finally, the link of th Street N. carries AM peak hour trips and 3 PM peak hour trips. 30

35 Multimodal Traffic Impact Analysis December, 20 The pedestrian counts indicate that at the signalized intersection of N. George Mason Drive at the main VHC entrance 0 and pedestrian crossings were observed during the AM and PM peak hours. At the signalized intersection of N. George Mason Drive/ th Street N., 2 and 22 pedestrian crossings occurred during the AM and PM peak hours. At the stop controlled intersection of N. George Mason Drive/ th Street N. a total of 2 and 23 pedestrian crossings occurred during the AM and PM peak hours, respectively. At the stop controlled intersection of N. Edison Street/ th Street N., and eight (8) pedestrian crossings occurred during the AM and PM peak hours At the stop controlled intersection of N. Edison Street/ th Street N., and pedestrian crossings occurred during the AM and PM peak hours. Additionally, at the midblock crossing on th Street N. connecting the VHC campus to the adjacent parking nine () and pedestrian crossings occurred during the AM and PM peak hours. 3

36 2 N. N. ROAD N. ROAD N. 3 8 N N. DICKERSON N. DINWIDDIE 2 N. LEE HIGHWAY / WASHINGTON BOULEVARD / N. / N. GLEBE ROAD LEE HIGHWAY N. HIGHWAY WASHINGTON LEE BOULEVARD N. N. BOULEVARD WASHINGTON N. N. N. N. N. GLEBE ROAD N. GLEBE ROAD WAY 2 3 WAY N. N. 8 N. WAY 3 N. WAY 0 WAY WAY 2 WAY 3 WAY 8 ROAD N. 28/ 02/02 8/ N. AM PEAK HOUR PM PEAK HOUR 000 / 000 /0 203/30 8/8 30/ 28/32 233/23 0/8 2/38 3/38 00/2 2/ 32/22 38/20 3/0 / / 88/ 2/ 28/2 / 08/ 0/ 0/2 /3 0/2 /2 0/ 88/8 /83 /0 /2 / 3/22 8/2 / /3 / 88/2 / 3/ / 2 2/28 /0 30/ 0/2 / 2/2 / 20/ /28 /0 / / 20/3 08/ 8/22 2/28 / /0 / 32/8 8/0 / 3/2 8/ 0/33 830/2 / /8 0/82 3/8 0/3 / 202/8 2/3 833/3 0/2 03/02 323/800 /8 / 0/2 20/ / 38/8 /2 / / 83/0 / 2/0 /3 30/ 202/0 2/3 / / 0/2 0/2 2/28 /8 / /0 8/2 /3 208/2 / 8/ 2/ 2/ /0 2/8 /8 / / /2 2/ 8/0 / /2 30/ 8/ NORTH 2/ 2/2 / / 0/3 33/0 8/38 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure - Existing 20 Peak Hour Traffic Volumes 32 Arlington County, Virginia

37 2 N. N. ROAD N. ROAD N. 3 8 N N. DICKERSON N. DINWIDDIE 2 N. LEE HIGHWAY / N. / N. GLEBE ROAD WASHINGTON BOULEVARD / LEE HIGHWAY N. HIGHWAY LEE N. N. WASHINGTON BOULEVARD WASHINGTON BOULEVARD N. N. N. N. N. ROAD N. GLEBE ROAD N. GLEBE 3 WAY WAY 2 N. WAY 3 8 N. N. WAY 0 WAY WAY 2 WAY 3 WAY 8 ROAD N. N. AM PEAK HOUR PM PEAK HOUR 000 / 000 8/2 2/ / 8/ 0/2 8/3 / /2 3/ 2/ / 3/ /2 / / 0/2 8/ 2/ /3 /8 0/ 0/ 2/ /0 / / 0/ /2 /0 /0 /8 / / /3 /3 8/ 3/0 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG /2 /3 /0 2/3 Figure -2 Existing 20 Peak Hour Pedestrian Volumes 33 NORTH Arlington County, Virginia

38 2 N. ROAD N. N. ROAD N. 3 8 N N. DICKERSON N. DINWIDDIE 2 N. LEE HIGHWAY / WASHINGTON BOULEVARD / N. / N. GLEBE ROAD LEE HIGHWAY N. HIGHWAY LEE N. WASHINGTON BOULEVARD N. BOULEVARD WASHINGTON N. N. N. N. N. GLEBE ROAD N. GLEBE ROAD 3 WAY N. WAY 2 N. WAY 3 8 N. N. WAY 0 WAY WAY 2 WAY 3 WAY 8 ROAD N. 2/ 0/ N. AM PEAK HOUR PM PEAK HOUR 000 / 000 / 0/3 0/ / /0 0/2 3/0 0/ /0 2/0 2/ /0 0/ 2/ 0/2 / 0/2 / /0 /0 2/0 / 2/ 0/ 0/2 /0 3/0 0/2 3/0 /0 0/ 3/0 0/ 0/ 2/0 /0 /0 /0 /0 NORTH /2 3/0 0/ O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure -3 Existing 20 Peak Hour Bicycle Volumes Arlington County, Virginia 3

39 Multimodal Traffic Impact Analysis December, 20 Existing Conditions Operational Analysis The existing peak hour LOS and queues were estimated at the study intersections based on; the existing lane use and traffic control shown on Figure 2-; existing traffic signal phasing/timings obtained from Arlington County; the existing vehicular, pedestrian, and bicycle traffic counts shown on Figures - through -3; and the Highway Capacity Manual (HCM) 2000 methodologies, using Synchro Software, version.. Descriptions of LOS A through F for signalized and unsignalized intersections are included in Appendix E. The results of the existing conditions analysis are presented in Appendix F and summarized in Tables - and -2. In addition to the peak hour volumes the following inputs were coded into Synchro: calculated peak hour factors by approach, lane widths, adjacent parking lane, number parking maneuvers, and bus blockages. Levels of Service. As shown in Table - the five () signalized study intersections currently operate at overall acceptable LOS D or better during the AM and PM peak hours. Certain minor street lane groups and/or turn lanes, as summarized below, currently operate at LOS E during peak periods. This is primarily due to heavy main line through traffic and/or a majority of the green time allocated to mainline traffic. The northbound and southbound through lanes and northbound left-turn lane at the intersection of N. George Mason Drive and Lee Highway (AM and PM). The northbound left-turn lane and westbound approach at the intersection of N. George Mason Drive and Washington Boulevard (PM). The eastbound right-turn lane (AM and PM) and the eastbound left-turn lane (PM) at the intersection of th Street N. and Glebe Road. At the stop controlled intersections all lane groups currently operate at acceptable LOS D or better during the AM and PM peak hours with the exception of the westbound th Street N. approach at N. George Mason Drive (LOS E, PM peak) and the north VHC campus driveway at th Street N. which operates at LOS F during the AM peak hour and LOS E during the PM peak hour. As observed in the field, at these locations vehicles utilize gaps in traffic created by traffic signals up and downstream to turn onto the main line traffic stream. Queueing. Existing peak hour queues for study intersection were determined using the 0 th and th percentile queues estimated by Synchro Software, version.. The 0 th and th percentile queues of existing conditions are used to establish a datum against which to compare future conditions. The 0 th percentile (or average) queue is defined as the maximum back of queue associated with a typical signal cycle. The th percentile queue is defined as the maximum back of queue with th percentile traffic volumes. The th percentile queue is not necessarily ever observed, it is simply based on statistical calculations. The results of the queueing analysis are presented in Appendix F and summarized in Table -2. Synchro Studio, Traffic Signal Software User Guide 3

40 Multimodal Traffic Impact Analysis December, 20 As shown on Table -2 and observed in the field peak hour queuing and the calculate average queues can be accommodated within the available turn lane storage provided at study intersections. At the following locations, the th percentile may extend beyond available storage: The northbound left-turn on N. George Mason Drive at Lee Highway (AM and PM) The southbound left-turn on N. George Mason Drive at th Street N. (AM) The southbound left-turn on N. George Mason Drive at Washington Boulevard (AM) The northbound left-turn on N. George Mason Drive at Washington Boulevard (PM) The eastbound th Street N. approach at Glebe Road (AM) 3

41 Table Table Existing Intersection Level of Service Summary Existing Intersection Level of Service Summary Multimodal Traffic Impact Analysis December, 20 Existing Conditions Existing Conditions Lane Group AM PM Lane Group AM PM Control Approach Peak Hour Peak Hour Control Approach Peak Hour Peak Hour LOS Delay LOS Delay LOS Delay LOS Delay. George Mason Drive/Lee Highway Signal EBL B. C th Street N./Site Driveway Stop EBTR A 0.0 A 0.0 EBTR C 3. C 30. WBLT A.0 A.0 WBL C 2.3 B. NBLR A.2 A.3 WBTR B 3. C 2.2 NBL E.8 E.2 NBT E 8. E.8. N. Edison Street/th Street N. Stop EBLR A.2 A.0 NBR D. D 3. NBLT A 3.8 A 3.0 SBL D 0. D. SBTR A 0.0 A 0.0 SBTR E.3 E. Overall D 3. D N. Edison Street/Site Driveway/ Stop EBLTR A 0.0 A 8.8 th Street N. WBLTR A.2 A.3 2. George Mason Drive/th Street N. Stop EBLTR C.8 B 2. NBLTR A 0.0 A 0.0 WBLTR D 2. E 0. SBLTR A.3 A. NBLTR A 0.2 A 2.2 SBLTR A 0.8 A 0.. N. Edison Street/Site Driveway Stop EBLR A. A.0 NBLT A. A George Mason Drive/Site Driveway Stop WBR B.2 A. SBTR A 0.0 A 0.0 NBTR A 0.0 A 0.0 SBT A 0.0 A N. Edison Street/Site Driveway Stop EBLR A NBLT A 2.2 A 0.0. George Mason Drive/ Stop EBLTR D 28.2 B 0. SBTR A 0.0 A 0.0 th Street N./Site Driveway WBLT F. E 3.2 WBR B. A. NBLTR A 0.0 A N. Edison Street/Site Driveway/ Stop EBLTR A 0.0 A. SBL B 0.3 A 8. th Road N. WBLTR B 0. A. SBTR A 0.0 A 0.0 NBLTR A. A 0.0 SBLTR A 0.0 A 0.0. George Mason Drive/Site Driveway Signal WBL D 0. D 38. WBR D 3. C 30.. N. Edison Street/th Street N. Stop EBLR B NBTR B. A.3 WBTR A 0.0 A 0.0 SBL A.0 A. SBLT A 0.3 A 0.2 SBT A. A. Overall B.3 B 0.. N. Edison Street/th Street N. Stop EBLTR A 2. A.2 WBLTR A 0.3 A 0.3. George Mason Drive/th Street N. Signal EBLTR D 3. C 2.0 NBLTR B. B 2.3 WBLT D. D.0 SBLTR C 20. C. WBR C 28. C 2. NBLTR A.8 A. SBL B 2. A.. Glebe Road/th Street N. Signal EBL D 2. E.2 SBTR A.2 A. EBR F 8.8 E 2.2 Overall B.0 B 3.3 NBLT B 8.2 A 8.0 SBTR B 0.8 A.0 Overall George Mason Drive/ Signal EBLTR C 33.3 C 28.0 Washington Boulevard WBLTR C 22.3 E. Notes: NBL C 2.0 E 2.. Capacity analysis based on Highway Capacity Manual methodology, using Synchro.. NBT D 3.0 C 2. NBR C 23.8 C 22. SBL D. C 28.0 SBTR C 2.0 D. Overall C 30.2 D. 3

42 Table 2 Table 2 Existing Intersection Queue Summary,2,3, Existing Intersection Queue Summary,2,3, Multimodal Traffic Impact Analysis December, 20 Existing Conditions Existing Conditions Traffic Lane Storage AM Peak Hour PM Peak Hour Traffic Lane Storage AM Peak Hour PM Peak Hour Control Group Length Queue (in feet) Queue (in feet) Control Group Length Queue (in feet) Queue (in feet) 0th th 0th th 0th th 0th th. George Mason Drive/Lee Highway Signal EBL th Street N./Site Driveway Stop EBTR 0 0 EBTR WBLT 0 0 WBL NBLR WBTR NBL 200 #28 #20 NBT 28 # N. Edison Street/th Street N. Stop EBLR 3 NBR NBLT 2 3 SBL 8 3 SBTR 0 0 SBTR N. Edison Street/Site Driveway/ Stop EBLTR George Mason Drive/th Street N. Stop EBLTR 3 2 th Street N. WBLTR 3 WBLTR 33 NBLTR 0 0 NBLTR SBLTR 2. N. Edison Street/Site Driveway Stop EBLR 0 NBLT 0 3. George Mason Drive/Site Driveway Stop WBR 0 SBTR 0 0 NBTR 0 0 SBT N. Edison Street/Site Driveway Stop EBLR 0 3 NBLT 0. George Mason Drive/ Stop EBLTR 0 SBTR 0 0 th Street N./Site Driveway WBLT 8 WBR NBLTR N. Edison Street/Site Driveway/ Stop EBLTR SBL 00 2 th Road N. WBLTR 2 NBLTR 0 SBLTR 0 0. George Mason Drive/Site Driveway Signal WBL WBR NBTR 2 #. N. Edison Street/th Street N. Stop EBLR SBL WBTR 0 0 SBT SBLT 0 0. George Mason Drive/th Street N. Signal EBLTR N. Edison Street/th Street N. Stop EBLTR 2 WBLT WBLTR WBR NBLTR 2 NBLTR 0 m 2 m2 SBLTR 3 SBL SBTR Glebe Road/th Street N. Signal EBL 00 EBR 2 #3 2. George Mason Drive/ Signal EBLTR 32 # 3 2 NBLT Washington Boulevard WBLTR 08 ~388 # SBTR NBL #8 NBT Notes: NBR Capacity analysis based on Highway Capacity Manual methodology, using Synchro.. SBL 30 # m Volume for th percentile queue is metered by upstream signal. SBTR ~ Volume exceeds capacity, queue is theoretically infinite.. # th percentile volume exceeds capacity, queue may be longer. 38

43 Multimodal Traffic Impact Analysis December, 20 Existing VHC Parking Demand Assessment An assessment of the existing parking demand of the VHC campus was conducted based on current conditions. Data for existing conditions was provided by VHC for each of the existing parking garages. The three parking garages have a total combined parking supply of,82 parking spaces. It is noted that valet parking is also provided within these structures and that the data also includes vehicles in the garage circulating either looking for a parking space or exiting. Existing Parking Occupancy. Parking occupancy data (including valet parking demand) was provided by VHC for a total of 22 days from January, 20 to October, 20. This data was tabulated and rank ordered to identify the 8 th percentile parking occupancy realized within the three (3) garages. The 8 th percentile is recommended by ITE and recognized within the industry as the appropriate metric for use in the design of a parking facility. W+A reviewed the available occupancy data for the 22 days provided and determined that 8 th percentile daily peak parking demand for the parking garages on the VHC campus is,0 parked vehicles. This exceeds the parking supply of,82 spaces by 3 spaces, or 0.% of the existing parking supply. The combined parking occupancy of the three garages for the 8 th percentile day is shown in Figure -. Recommended Design Hour Parking Supply. The recommended design hour parking supply necessary to serve the existing campus was determined based on the 8th percentile parking occupancy, with an adjustment for practical capacity. It is typical to apply a 0 percent adjustment for practical capacity to the 8 th percentile occupancy (by dividing by 0.0) in order to provide the additional spaces needed for circulation, turnover, and fluctuations in demand (effective supply). Based on the existing 8 th percentile peak parking occupancy of,0 parked vehicles, the existing VHC campus would require an effective supply of 2,8 parking spaces (excludes valet parking) to adequately accommodate the existing parking demand (,0 vehicles / 0. = 2,8 spaces). This adjustment provides for the practical capacity of a parking facility to accommodate minor fluctuations, turnover, and traffic circulation. Therefore, the existing VHC campus currently has a parking supply deficiency of approximately 2 spaces (2,8,82 = 2). 3

44 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure - Existing VHC Parking Garage Occupancy 0 NORTH Arlington County, Virginia

45 Multimodal Traffic Impact Analysis December, 20 SECTION FUTURE CONDITIONS WITHOUT DEVELOPMENT (202) Background Conditions This section presents an analysis of the future transportation conditions including projections of 202 future traffic forecasts without the proposed development, as well as capacity and queuing analyses. Methodology/Assumptions. It was assumed that the proposed redevelopment would be complete and fully occupied by 202 as specified in the traffic scoping document. The 202 future traffic forecasts without site redevelopment were developed based on a composite of existing baseline 20 traffic volumes and regional traffic growth. Pipeline Developments. As outlined in the scoping document, no pipeline developments were identified near the site. Planned Improvements. A single roadway improvement was identified within the study area. The southwest curb at the George Mason Drive/ th Street N intersection is proposed to be extended thus shortening crosswalks and improving pedestrian safety. No other funded or planned roadway improvements were identified within the study area. Regional Growth. An increase in traffic associated with regional growth from 20 to 202 was estimated at 0. percent per year, compounded annually, for all turning movements as agreed to with DES staff during scoping. This growth rate was applied to all turning movements, with the exception of the movements in/out of the site driveways. This growth accounts for increases in traffic resulting from potential development and influences outside of the immediate study area. The regional growth at each of the study intersections is shown on Figure -. The resulting 202 future traffic forecasts without development (existing plus growth) are shown on Figure -2.

46 2 N. N. ROAD N. ROAD N N. DICKERSON N. DINWIDDIE LEE HIGHWAY / 8 WASHINGTON BOULEVARD / N. / N. GLEBE ROAD AM PEAK HOUR PM PEAK HOUR 000 / 000 N. 2 N. LEE HIGHWAY N. HIGHWAY LEE N. N. WASHINGTON BOULEVARD BOULEVARD WASHINGTON N. N. N. N. N. GLEBE ROAD N. GLEBE ROAD WAY 3 WAY 2 N. N. 0 2 WAY 3 WAY 8 ROAD N. N. INTERSECTIONS 3 & 8 ARE CLOSED 8 WAY 8 N. N. WAY WAY 2/2 8/2 3/3 / /3 / /2 2/2 / /2 2/2 / / /2 2/2 / 2/ 2/2 0/2 0/ /3 3/ 2/ 2/2 2/2 / 2/2 3/3 / 3/2 0/ /0 8/3 2/ 23/2 28/22 /3 /3 /2 3/ 0/3 2/3 8/8 2/ 3/ /3 / 2/3 0/ 0/3 / 3/33 2/2 0/ 22/32 / /2 32/ 8/ 3/ 3/3 2/ 3/ /0 0/2 8/0 0/3 0/ 0/3 /0 0/ 2/ 30/2 2/28 x/x /2 / /3 2/ / NORTH /3 / 2/3 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure - Regional Growth 2 Arlington County, Virginia

47 2 N. N. ROAD N. ROAD N. 3 8 N N. DICKERSON N. DINWIDDIE 2 N. LEE HIGHWAY / WASHINGTON BOULEVARD / N. / N. GLEBE ROAD LEE HIGHWAY N. HIGHWAY WASHINGTON LEE BOULEVARD N. N. BOULEVARD WASHINGTON N. N. N. N. N. GLEBE ROAD N. GLEBE ROAD WAY 2 3 WAY N. N. 8 N. WAY 3 N. WAY 0 WAY WAY 2 WAY 3 WAY 8 ROAD N. 2/ 2/0 /3 N. AM PEAK HOUR PM PEAK HOUR 000 / 000 /2 2/3 8/ 3/22 28/32 22/2 0/8 2/38 3/0 082/ 223/ 33/23 38/20 3/2 / / 2/8 30/2 2/ / 2/8 2/ 2/2 /3 0/2 /2 3/ 028/88 02/88 20/8 /2 / 328/230 0/ /8 /3 / 2/ / 3/ 3/ /2 /0 3/ 0/2 / 2/2 8/2 2/ 3/2 3/3 /3 / /0 08/ 8/22 / / /0 / 32/8 8/0 / 3/0 8/ 3/3 8/ / / 2/8 /02 0/ 828/8 20/88 /3 8/380 3/2 0/0 33/833 /0 / 0/ 2/20 / 0/8 /2 2/00 /8 83/0 / 2/0 / 3/ 20/3 /3 /2 2/ 2/2 0/2 22/2 /8 / /0 8/2 / 2/2 / 8/ 2/ 2/ /3 2/ /8 / / /2 2/ 8/0 / /28 3/8 8/ NORTH /82 2/2 02/0 /3 0/3 33/0 /0 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG Figure -2 Background 202 Traffic Forecasts 3 Arlington County, Virginia

48 Future Conditions without Development Operational Analysis (202) Multimodal Traffic Impact Analysis December, 20 Future peak hour LOS and 0 th and th percentile queues without the redevelopment of Virginia Hospital Center in year 202 were estimated at the study intersections based on the existing lane use and traffic controls shown on Figure 2-; existing traffic signal phasing/timings obtained from Arlington County; the future peak hour traffic forecasts without redevelopment are shown on Figure -2; and the HCM 2000 methodologies using Synchro Software, version.. The LOS and queue results are presented in Appendix G and summarized in Tables - and -2. Levels of Service. As shown in Table -, with increases in traffic due to regional growth the signalized study intersections would continue to operate at acceptable overall LOS D or better during the AM and PM peak hours. The results indicate only minor increases in delay would occur. Consistent with existing conditions those lane groups mentioned previously would continue to operate at LOS E or F. In addition to those mentioned previously, the westbound throughleft lane on th Street N. would operate at LOS E (from LOS D under existing conditions) during the AM peak hour. Each stop controlled study intersection would continue operate similar to existing conditions. No lane groups, besides those previously identified would operate at LOS E or F. Queueing. As shown on Table -2, the results of the queueing analysis are similar to those described in under existing conditions. Increases in the estimated average and th percentile queues when compared to existing conditions equate to approximately one () vehicle or less. Those turn lanes identified under the existing conditions would continue to exceed the available storage on occasion in the future without development.

49 Table Future without Development Intersection Level of Service Summary Existing Conditions Future Conditions without Development Multimodal Traffic Impact Study December, 20 Control Lane Group Approach AM PM AM PM Peak Hour Peak Hour Peak Hour Peak Hour LOS Delay LOS Delay LOS Delay LOS Delay. George Mason Drive/Lee Highway Signal EBL B. C 2. B. C 28.8 EBTR C 3. C 30. C 33.8 C 3.8 WBL C 2.3 B. C 2. B. WBTR B 3. C 2.2 B 3. C 2. NBL E.8 E.2 E 8. D 3. NBT E 8. E.8 E.8 D. NBR D. D 3. D. D 3.2 SBL D 0. D. D 0. D.0 SBTR E.3 E. E.0 E. Overall D 3. D 3.3 D 38. D George Mason Drive/th Street N. Stop EBLTR C.8 B 2. C. B 2. WBLTR D 2. E 0. D 2.8 E 3. NBLTR A 0.2 A 2.2 A 0.2 A 2.2 SBLTR A 0.8 A 0. A 0. A George Mason Drive/Site Driveway Stop WBR B.2 A. B. A.8 NBTR A 0.0 A 0.0 A 0.0 A 0.0 SBT A 0.0 A 0.0 A 0.0 A 0.0. George Mason Drive/th Street N./ Stop EBLTR D 28.2 B 0. D 2. B 0. Site Driveway WBLT F. E 3.2 F 8. E.2 WBR B. A. B. A. NBLTR A 0.0 A 0.0 A 0.0 A 0.0 SBL B 0.3 A 8. B 0. A 8.8 SBTR A 0.0 A 0.0 A 0.0 A 0.0. George Mason Drive/Site Driveway Signal WBL D 0. D 38. D 0.2 D 38. WBR D 3. C 30. D 3.2 C 30. NBTR B. A.3 B 8. A. SBL A.0 A. A.0 A. SBT A. A. A. A. Overall B.3 B 0. B.0 B 0.. George Mason Drive/th Street N. Signal EBLTR D 3. C 2.0 D 2. C 2. WBLT D. D.0 E.2 D.0 WBR C 28. C 2. C 28. C 2. NBLTR A.8 A. A 8.3 A. SBL B 2. A. B 2. A. SBTR A.2 A. A.0 A 8. Overall B.0 B 3.3 B.3 B 3.. George Mason Drive/ Signal EBLTR C 33.3 C 28.0 D 3. C 2.2 Washington Boulevard WBLTR C 22.3 E. C 23. E. NBL C 2.0 E 2. C 3.0 E.3 NBT D 3.0 C 2. D 3. C 2.3 NBR C 23.8 C 22. C 23. C 22.3 SBL D. C 28.0 D. C 28.0 SBTR C 2.0 D. C 2.2 D 3. Overall C 30.2 D. C 32.3 D. 8. th Street N./Site Driveway Stop EBTR A 0.0 A 0.0 A 0.0 A 0.0 WBLT A.0 A.0 A.0 A.0 NBLR A.2 A.3 A.2 A.2. N. Edison Street/th Street N. Stop EBLR A.2 A.0 A.2 A.0 NBLT A 3.8 A 3.0 A 3.8 A 3.0 SBTR A 0.0 A 0.0 A 0.0 A N. Edison Street/Site Driveway/ Stop EBLTR A 0.0 A 8.8 A 0.0 A 8.8 th Street N. WBLTR A.2 A.3 A.2 A.2 NBLTR A 0.0 A 0.0 A 0.0 A 0.0 SBLTR A.3 A. A.3 A.. N. Edison Street/Site Driveway Stop EBLR A. A.0 A. A.0 NBLT A. A 0.0 A. A 0.0 SBTR A 0.0 A 0.0 A 0.0 A N. Edison Street/Site Driveway Stop EBLR A 8. A.3 A 8. A.3 NBLT A 2.2 A 0.0 A 2. A 0.0 SBTR A 0.0 A 0.0 A 0.0 A N. Edison Street/Site Driveway/ Stop EBLTR A 0.0 A. A. A.8 th Road N. WBLTR B 0. A. B 0. A. NBLTR A. A 0.0 A. A 0.0 SBLTR A 0.0 A 0.0 A 0.0 A 0.0. N. Edison Street/th Street N. Stop EBLR B 0. A.8 A 0.0 A. WBTR A 0.0 A 0.0 A 0.0 A 0.0 SBLT A 0.3 A 0.2 A 0.3 A 0.. N. Edison Street/th Street N. Stop EBLTR A 2. A.2 A 2.0 A.2 WBLTR A 0.3 A 0.3 A 0.3 A 0.3 NBLTR B. B 2.3 B. B 2.0 SBLTR C 20. C. C. C.. Glebe Road/th Street N. Signal EBL D 2. E.2 D 2. E. EBR F 8.8 E 2.2 F 82. E 0. NBLT B 8.2 A 8.0 B.3 A 8.3 SBTR B 0.8 A.0 B 0. A 3. Overall C 2.0 B 2. C 2.8 B 2. Notes:. Capacity analysis based on Highway Capacity Manual methodology, using Synchro..

50 Table 2 Future without Development Intersection Queue Summary,2,3, Multimodal Traffic Impact Study December, 20 Existing Conditions Future Conditions without Development Traffic Lane Storage Control Group Length AM Peak Hour PM Peak Hour AM Peak Hour PM Peak Hour Queue (in feet) Queue (in feet) Queue (in feet) Queue (in feet) 0th th 0th th 0th th 0th th. George Mason Drive/Lee Highway Signal EBL EBTR WBL WBTR NBL 200 #28 #20 3 #22 0 #2 NBT 28 # # 20 0 NBR SBL SBTR George Mason Drive/th Street N. Stop EBLTR WBLTR NBLTR 0 SBLTR George Mason Drive/Site Driveway Stop WBR 0 0 NBTR SBT George Mason Drive/th Street N. Stop EBLTR 0 0 /Site Driveway WBLT 8 80 WBR NBLTR SBL SBTR George Mason Drive/Site Driveway Signal WBL WBR NBTR 2 # 2 # 2 SBL SBT George Mason Drive/th Street N. Signal EBLTR WBLT WBR NBLTR 0 m 2 m2 8 m 38 m0 SBL SBTR George Mason Drive Signal EBLTR 32 # # /Washington Boulevard WBLTR 08 ~388 # 8 8 ~33 #0 NBL #8 #2 8 # NBT NBR SBL 30 # #2 3 0 SBTR th Street N./Site Driveway Stop EBTR WBLT NBLR. N. Edison Street/th Street N. Stop EBLR 3 3 NBLT SBTR N. Edison Street/Site Driveway Stop EBLTR /th Street N. WBLTR 3 3 NBLTR SBLTR. N. Edison Street/Site Driveway Stop EBLR 0 0 NBLT 0 0 SBTR N. Edison Street/Site Driveway Stop EBLR NBLT 0 0 SBTR N. Edison Street/Site Driveway Stop EBLTR 0 /th Road N. WBLTR 2 2 NBLTR 0 0 SBLTR N. Edison Street/th Street N. Stop EBLR WBTR SBLT N. Edison Street/th Street N. Stop EBLTR 2 2 WBLTR 0 NBLTR 2 2 SBLTR Glebe Road/th Street N. Signal EBL EBR 2 # #38 3 NBLT SBTR Notes:. Capacity analysis based on Highway Capacity Manual methodology, using Synchro.. 2. m Volume for th percentile queue is metered by upstream signal. 3. ~ Volume exceeds capacity, queue is theoretically infinite.. # th percentile volume exceeds capacity, queue may be longer.

51 Multimodal Traffic Impact Analysis December, 20 SECTION PROPOSED DESCRIPTION, TRIP GENERATION, DISTRIBUTIONS & ASSIGNMENTS Proposed Site Redevelopment Description The Applicant proposes to construct a new 20,000 SF outpatient/ambulatory building on the Edison Site and convert approximately 20,000 SF of existing outpatient/ambulatory space on the VHC campus to accommodate 0 new hospital beds to meet the growing needs of the community. To implement the proposed redevelopment the Applicant has filed a GLUP Amendment Application, a Rezoning Application, a Major Site Plan Amendment, and a Use Permit Amendment. As noted previously, for purposes of this Multimodal TIA, 20,000 SF was assumed for the new Outpatient Pavilion. Therefore, the analysis should be considered conservative. As proposed, the Edison site will be razed and redeveloped with The Outpatient Pavilion of VHC and a new parking garage containing approximately 2,08 parking spaces. The Outpatient Pavilion of VHC is proposed to contain 20,000 SF of outpatient and ambulatory uses of which 20,000 SF is being relocated from the existing VHC campus and 30,000 SF is new space. The new parking garage will serve the proposed Outpatient Pavilion of VHC, existing VHC employees, and address the existing VHC campus parking deficiency. Refer to Figure -2 for a reduced copy of the Plot and Location Plan. For purposes of this analysis it is assumed that the conversion of the existing VHC campus and inclusion of the Edison Site would be constructed and fully occupied by 202. Refer to Table - for a density comparison of the existing and future VHC campus. Proposed Site Access and Circulation Three (3) of the four () existing curb cuts that currently serve the existing Edison Site are proposed to be shifted and/or modified to accommodate the new outpatient/ambulatory facility and structured parking. One () curb cut on Edison Street will be closed. A new service road will provide an internal connection between the existing hospital campus and the Edison Site. This service road will provide a connection between the main hospital campus and proposed parking garage/loading area. Additionally, the unsignalized full-movement intersection of N. George Mason Drive and th Street N./VHC campus driveway will be modified. As proposed, a new signalized full movement intersection on N. George Mason Drive is proposed approximately feet north of the existing signalized intersection of N. George Mason Drive and the main entrance to the VHC campus. The proposed traffic signal spacing is slightly greater than the existing signalized intersection spacing between th Street N. and the VHC Campus entrance (0 feet) as summarized on Figure -. A new southbound left-turn lane would be constructed (approximately 200 feet full-width lane with a 00-foot taper) to serve southbound traffic accessing the new parking garage. The new signalized intersection would be located

52 Multimodal Traffic Impact Analysis December, 20 approximately 30 feet south of the intersection of th Street N. and N. George Mason Drive providing and approximately 20 feet north of the VHC campus entrance and th Street N as shown on Figure -. To address access management concerns along N. George Mason Drive, two (2) additional alternatives were analyzed which limit the turning movements at the th Street N./VHC entrance as shown on Figure -2. It is also noted that the median closure at th Street/VHC entrance and conversion to right in/right out would improve safety at the intersection and reduce the number of potential crashes. Alternative includes modifications to the existing median break on N. George Mason Drive at th Street N./VHC campus entrance converting the minor street approaches to right-in/ rightout while continuing to permit southbound left turns into the VHC campus. The southbound left turn is a critical movement to maintain because it serves emergency and delivery traffic which are restricted from using Edison Street through previous Development Conditions. This driveway provides direct access to the loading docks and emergency vehicle facilities in the rear of the hospital. Alternative 2 includes similar modifications to the existing median break on N. George Mason Drive at th Street N./VHC campus entrance, but only permits emergency and delivery traffic to use the southbound left turn into the VHC campus. Additional signage and/or pavement markings would be required to indicate the turn lane is for permitted uses only. 8

53 Multimodal Traffic Impact Analysis December, 20 Table Parcel Density Comparison Parcel Existing Conditions Proposed Conditions Difference Size Units Size Units Size Units Hospital Uses,23 SF,23 SF 20,000 SF Outpatient/Ambulatory Uses 8,8 SF,8 SF 20,000 SF Total 82,2 SF 82,2 SF 0 SF Edison Site (Existing) / The Outpatient Pavilion (Future) Outpatient/Ambulatory Uses 0 SF 20,000 SF 20,000 SF Office 8,00 SF 0 SF 8,00 SF Total 8,00 SF 20,000 SF 3,00 SF Notes:. Existing hospital campus approved for 88,2 GFA.

54 O:\PROJECTS\00-000\3 VIRGINIA HOSPITAL CENTER MASTER FACILITY PLAN\GRAPHICS\3 - RPT GRAPHICS - UPDATED BORDER.DWG EXISTING 30' 0' 32' PROPOSED 30' PROPOSED TRAFFIC SIGNAL 20' MODIFY MEDIAN TO RIGHT-IN/RIGHT-OUT AND SOUTHBOUND LEFT-IN 32' NEW ACCESS ' 0' 0' Figure - Intersection Spacing Diagram 0 NORTH Arlington County, Virginia