Program Overview. February 2018

Transcription

1 Program Overview February 2018

2 Nashville is growing 2

3 and traffic is getting worse 5

4 Nashville spoke; we listened

5 Transit Improvement Program Frequent Transit Bus AccessRide and Mobility on Demand Neighborhood Transit Centers Crosstown Routes Rapid Bus Service Commuter Rail Improvements Light Rail Transit

6 The Downtown Situation Photo by Bruce Bennett/Getty Images

7 The Downtown Situation Photo by Bruce Bennett/Getty Images

8 Downtown Tunnel System Challenges Downtown Streets are Congested Dependency on Street Access Maximize System Benefits Minimize System Impacts Tunnel Advantages Creates Downtown Capacity Reliability and Travel Time Savings No Trains/Fewer Buses on the Street Efficient Transit Operations Transit Connectivity to Key Locations 8

9 Deep Bore Tunnel Concept Plan and Profile

10 Deep Bore Tunnel and Underground Station Twin Tunnel One Train/Bus in Each Direction Minimize Impacts During Construction and Operations Preferred Configuration Underground Station Multilevel (Concourse and Mezzanine) Size for Ultimate System Capacity Side vs Center Platform

11 General Design Considerations Fire-Life-Safety Requirements Suitable for Geologic and Hydrologic Conditions Minimize Impacts to Existing Infrastructure (Utilities, Building Foundations, etc.) Project Safety Constructability Meet Schedule and Budget

12 Deep Bore Twin Tunnel Design 20 Nominal Diameter Nominally 1 1 ½ Diameter below top of Competent Rock Nominally 1 Diameter Separation Space Proof Meet Geometric Constraints

13 Deep Bore Twin Tunnel Construction Modern Tunnel Boring Machine (TBM) Economical & Efficient Structural Support Suitable Laydown/Staging Areas Construction Access Hauling Materials

14 Underground Station Design Specific Locations to be Determined Size for customer and train volumes ADA Access Systems (Train Control, Mechanical, Communications, Data) Access to Surface and Laydown Area

15 Underground Station Construction Mined Stations (Music City Central and Broadway/5 th ) Mined Drifts After Tunnels are Bored Material Removal via Tunnels or Through Surface Waterproof Membrane and Cast-in- Place Concrete Lining Surface Penetrations/Worksites Construction Egress Ventilation Shafts Power Substations Head Houses

16 Street Access Multimodal Considerations Context Sensitive Design Scalable ADA Access Art Program

17 LRT Design Considerations Safety for all Users in Public Right of Way Balanced Multimodal Approach ADA Access Partner with TDOT and other Agencies Extensive Civil Work Minimize Impacts and Maximize Benefits Design to Budget

18 5 LRT Corridors ~25 Corridor Miles of In-Street LRT Bi-Directional Center Running LRT Center and Side Platforms Complete Streets Approach Left Turns at Signaled Intersections Gallatin Pike Near 8 th Street (Before and After)

19 4 Rapid Bus Corridors ~27 miles of Rapid Bus Corridors Electric Buses Dedicated Bus Lanes where Feasible Enhanced Stations TSP Level Boarding Off-Board Fare Collection ADA Accessible Sidewalk Improvements Near Station Image from National Association of City Transportation Officials (NACTO)

20 Construction Impact Mitigation Noise, Dust, Vibrations Work Hour Constraints Maintenance of Traffic Construction Access and Staging Maintain Utility Services Business Outreach Program Source: Met Council, Central Corridor Construction on University Ave.

21 Bus Capital and Operating Costs ( ) ($ in millions)

22 Rail and Total Capital and Operating Costs ( ) ($ in millions)

23 Sources and Uses During Construction ( ) ($ in millions)

24 DRo2 Financing Plan ½% sales tax surcharge 20% surcharge on the business and excise tax 1% sales tax surcharge ¼% surcharge on hotel tax 3/8% surcharge on hotel tax 20% surcharge on the rental car tax Farebox revenue, federal grants and other contributions

25 Program Benefits Access: We ll provide our youth, elderly, disabled and disadvantaged citizens with more travel options, new and cleaner buses, more convenient routes and on-demand technology. Jobs: We ll provide opportunities for good paying jobs for Davidson County residents during construction and operation of the transit network. Sustainability: We ll reduce smog and greenhouse gas emissions by offering electric buses and light rail, bike lanes, and sidewalks as alternatives to cars. Affordable Housing: We ll capture the increased value of property along light rail and rapid bus corridors to reinvest in affordable and workforce housing near transit lines, lowering cost burdens on working families. Safety: We ll fix Nashville s most dangerous intersections, improve existing crosswalks and traffic signals, and invest in sidewalks connected to neighborhoods. Community: Most importantly, we ll keep our communities connected to each other, and help preserve everything we love about Nashville even as our city grows.

26 Thank You!