Portland-Milwaukie Light Rail Project Johnson Creek Boulevard EXISTING AND FUTURE OPERATIONS AND POTENTIAL MITIGATIONS Presented by Alan Snook DKS Associates October 12, 2009 1
AGENDA Traffic 101 Study Area Ownership and Functional Class Existing Traffic Data Trip Distribution Future Conditions Potential Mitigation Discussion 2
TRAFFIC 101 Peak Hour Level of Service Volume to Capacity Ratio Queuing No Project vs. Project Trip Generation Mitigation 3
STUDY AREA AND INTERSECTIONS 99E SB on/off ramp 32 nd Ave 17 th Avenue 99E SB off ramp 99E NB on/off ramp 36 th Ave 42 nd Ave 45 th Place Study Area Intersection Study Corridor N 4
CORRIDOR/INTERSECTION OWNERSHIP Tacoma Street 32 nd Ave 36 th Ave 42 nd Ave 17 th Avenue N City of Portland Ownership/Jurisdiction City of Milwaukie Ownership/Jurisdiction Oregon Department of Transportation Ownership/Jurisdiction 5
Existing 2009 Conditions 6
EXISTING TRAFFIC DATA 99E SB on/off ramp 32 nd Ave 17 th Avenue 99E SB off ramp 99E NB on/off ramp 34 MPH 36 th Ave 34 MPH 42 nd Ave 45 th Place 1200 1000 800 Number of cars a day = 13,550 Westbound Eastbound 600 400 200 0 1200 1000 800 600 Number of cars a day = 13,700 Westbound Eastbound N 12:00 AM 06:00 AM 12:00 PM 06:00 PM 11:00 PM 400 200 0 PM Peak meets Jurisdiction Standard PM Peak does NOT meet Jurisdictional Standard 7 12:00 AM 06:00 AM 12:00 PM 06:00 PM 11:00 PM
CURRENT AM PEAK USERS OF JOHNSON CREEK BOULEVARD 35% Downtown Portland 20% North of Sellwood Bridge 17% Portland 25% South of Sellwood Bridge 5% Milwaukie 69% Clackamas County 15% South 14% Milwaukie N 8
CURRENT PM PEAK USERS OF JOHNSON CREEK BOULEVARD 18% Downtown Portland 38% North of Sellwood Bridge 21% Portland 12% South of Sellwood Bridge 24% South 8% Milwaukie 34% Milwaukie 45% Clackamas County N 9
Future 2015 Conditions 10
PARK AND RIDE SCENARIOS EVALUATED - Is in need of some improvement 11
MOTOR VEHICLE TRIP GENERATION AND DISTRIBUTION <1% 2% 12% 6% 17 th Avenue 20% Park and Ride 30% 10% 20% 1% 5% 7% 50% 32 nd Ave 36 th Ave 7% 25% South of 224 25% to 224 42 nd Ave N X% - Park and Ride Motor Vehicle Distribution 12
17 TH AVENUE/TACOMA STREET QUEUING Existing and Future PM Peak 17 th Avenue/Tacoma Street Tacoma Street Signal Timing Adjustments Existing 2015 No Build 17 th Avenue N 2015 With Project No Mitigation 2015 With Project Mitigated 13
99E SOUTHBOUND OFF RAMP/TACOMA STREET QUEUING Existing and Future PM Peak 99E Southbound/Tacoma Street Nehalem Street Two Stage Left Turn Tenino Street Existing N 2015 No Build 2015 With Project No Mitigation 2015 With Project Mitigated 14
99E NORTHBOUND ON-OFF RAMP/TACOMA STREET QUEUING Existing and Future PM Peak 99E Northbound/Tacoma Street NO MITIGATION NECESSARY Eastmoreland Golf Corse Proposed Park and Ride Existing N 2015 No Build 2015 With Project No Mitigation 2015 With Project Mitigated 15
32 ND AVENUE/JOHNSON CREEK BOULEVARD QUEUING Existing and Future PM Peak Eastmoreland Golf Corse 32 nd Ave/Johnson Creek Blvd Signalize Add westbound left turn 32 nd Ave Existing 2015 No Build 2015 With Project No Mitigation 2015 With Project Mitigated 16
36 TH AVENUE/JOHNSON CREEK BOULEVARD QUEUING Existing and Future PM Peak 36 th Ave/Johnson Creek Blvd Remove east/west stop control 36 th Ave Existing 2015 No Build 2015 With Project No Mitigation 2015 With Project Mitigated 17
42 ND AVENUE/JOHNSON CREEK BOULEVARD QUEUING Existing and Future PM Peak 42 nd Ave/Johnson Creek Blvd Signalize intersection 42 nd Ave Existing 2015 No Build 2015 With Project No Mitigation 2015 With Project Mitigated 18
45 TH PLACE/JOHNSON CREEK BOULEVARD QUEUING Existing and Future PM Peak 45 th Place/Johnson Creek Blvd 45 th Place Signal Timing Adjustments Existing 2015 No Build 2015 With Project No Mitigation 2015 With Project Mitigated 19
SUMMARY OF POTENTIAL MITIGATION STRATEGIES 17 th Ave/Tacoma Street 99E Southbound/Tacoma 32 nd Avenue/JCB 36 th Avenue/JCB 42 nd Avenue/JCB 45 th Place/JCB Signal Timing Adjustments Two stage left turn Signalize intersection Add Westbound Left Turn Remove east/west stops Signalize intersection Signal Timing Adjustments 20
JOHNSON CREEK BOULEVARD PM PEAK HOUR COMPARISON Volumes Eastbound Westbound Existing 2015 No Project 590 430 750 590 2015 With Project No Mitigation 800 580 2015 With Project With Mitigation 870 610 Vehicle Speed 34 mph 27 mph 27 mph 33 mph Emissions (CO 2 ) 5.1 kg 10.7 kg 10.5 kb 5.9 kg Travel Time Eastbound Westbound 5 min 45 sec 3 min 10 sec 9 min 30 sec 4 min 15 sec 9 min 45 sec 4 min 15 sec 6 min 00 sec 3 min 30 sec Fuel Consumed 73 gal 153 gal 150 gal 85 gal 21
Next Steps/Discussion 22