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Government Center Station Reconstruction Project Green Line / Blue Line Public Meeting

Government Center Station Reconstruction Project Green Line / Blue Line Public Meeting. February 12, 2010. December, 2012. Project Purpose. Accessibility - AAB - 521 CMR Compliance Modernized, Customer-Friendly Station New Station Entrance and Lobbies Redundant Elevators

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Government Center Station Reconstruction Project Green Line / Blue Line Public Meeting

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  1. Government Center StationReconstruction ProjectGreen Line / Blue LinePublic Meeting February 12, 2010 December, 2012

  2. Project Purpose • Accessibility - AAB - 521 CMR Compliance • Modernized, Customer-Friendly Station • New Station Entrance and Lobbies • Redundant Elevators • Upgrade to Current Code Requirements • Complete Electrical System Replacement • New Station Platforms • Improved Lighting • New Fare Gates • Station Entrance that ties into City Hall Plaza

  3. Project Schedule 2009 – BRA Conceptual Design Approval 2012 – Final Design and Bidding 2013 – Begin Construction and Station Closure * 24 month Station Closure & Subway By-pass * 2015 – Anticipated Re-Opening

  4. Stakeholder and Public Outreach • CITY OF BOSTON • Boston Redevelopment Authority • Property Management • Commission for Person with Disabilities • Boston Landmarks Commission • Public Works Dept. • Boston Transportation Dept. • Boston Water and Sewer Commission • Public Improvements Commission • Mayor’s Office • Parks and Recreation Dept. • Street Lighting • OTHERS • General Services Admin • Federal Transit Admin • Mass DOT • Mass Historical Commission • Area Business Groups • Project Abutters • Private Utilities • Architectural Access Board MBTA • System-wide Accessibility • Green Line and Blue Line Operations • Security • Safety • Signals • Communications • Engineering & Maintenance • Real Estate Management • Environmental • Design & Construction • Advertising • Track • Electrical Systems and Maintenance • Traction Power • Quality Control PLANNED • Public Information Meeting October 2012

  5. Existing Station Headhouse

  6. Proposed Station Entrance

  7. Existing City Hall Plaza

  8. Proposed City Hall Plaza

  9. Project Site – Existing Cambridge Street Court Street Station Entrance JFK Federal Building City Hall Plaza Boston City Hall

  10. Proposed Site Plan Cambridge Street Proposed Entrance Emergency Egress - Only Headhouse JFK``` Project Limits Accessible Routes City Hall

  11. Proposed Accessible Routes Cambridge Street Proposed Entrance Emergency Egress - Only Headhouse Accessible Routes

  12. Proposed City Hall Plaza

  13. Headhouse Plan Six Entrances with Automatic Sliding Doors Fare Collection Redundant Elevators Accessible Restroom Glass Element with Stairs and Escalators

  14. Headhouse/Station Cross Section Surface To Green Line Elevs. Green Line to Haymarket Green Line “Brattle Loop”

  15. Headhouse Entry

  16. Interior – Entry Lobby

  17. Interior – Paid Lobby

  18. Proposed Head House - Interior Redundant Elevators Solid Stair Risers Perforated for Safety and Visibility

  19. Green Line Station Plan • SCOPE OF WORK • Raise Entire Station Floor 8-inches • Install Redundant Elevators • Construct Rescue Assistance Enclosure • Replace all Escalators • Replace Stairs to Surface • Reconstruct Stairs to Blue Line • Replace Electrical Substation • Replace Electrical Room Redundant Elevators to Surface Rescue Assistance Enclosure Electrical Substation Redundant Elevators to Blue Line

  20. Green Line StationTrack Clearance Improvements Existing Platform: About 3-feet Wide Proposed Platform: About 10-feet Wide with Tactile Warnings

  21. Blue Line Station Plan Construct Area of Rescue Assistance and Stairs for Emergency-Only Egress Replace Escalator & Vendor Space Construct Redundant Elevators to Green Line Move Stairs

  22. Blue Line Emergency Egress Blue Line Emergency–only Egress (looking towards Tremont St) Blue Line Emergency–only Egress (from Cambridge Street)

  23. Construction Phasing Criteria: Minimize Operational Disruptions Maintain Public and Worker Safety Minimize Risks of Delays Maximize Quality of Workmanship Value Engineering Recommendation: Station Closure & By-pass

  24. Construction Phasing Phase 1 Phase 2 Phases 3&4 Station Open Alternative (Not Selected) - Construct and Maintain Temp. Headhouse - Increased Cost - Longer Schedule - Mainly Nightwork - Increased Passenger Safety Risks - Increased Service Disruptions - Required Minimum 32+ Weekend Diversions - Required Frequent Changes to Accessible Routes - Required Frequent Changes to Boarding Areas

  25. Construction Phasing Station Closure and By-pass Alternative (Selected Option) Advantages: • Safer Operations & Construction • Reduced Travel Impacts • Reduced Project Schedule • Simpler Surface Work • Easier Trip Planning Disadvantages: • Longer walk for some users • Additional transfer time

  26. Future Access toGovernment Center Station

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