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The Dumbarton Corridor Improvement Project (Project) aims to improve reliability and reduce travel times for transit service. The Project will include the installation of a Transit Signal Priority (TSP) system, bus queue-jumps, and bus stop improvements and relocations. These improvements will ensure that the State Route 84 corridor in the cities of Union City, Fremont, Menlo Park, and Palo Alto provides transit services that better connect residents and businesses in the South Bay to job centers in the East Bay and on the Peninsula.
AC Transit announces the start of construction for the Project
Project outreach and planning activities have concluded. We appreciate your feedback and participation in this project.
The Project includes the installation of Transit Signal Priority (TSP) equipment, bus queue-jumps, and bus stop improvements and relocations along the corridor in Union City, Fremont, Menlo Park, and Palo Alto to improve bus reliability and reduce travel times.
The construction phase is anticipated to begin in January 2023 and conclude in Spring 2023.
Construction will take place from January 2023 though Spring 2023 on weekdays. Anticipated impacts will include intermittent lane and temporary bus stop closures to accommodate bus stop improvements, relocations, and consolidations. Residents, businesses, and homeowners adjacent to construction activities will be notified approximately two weeks before the proposed construction activities. No construction activities are anticipated for night-time, weekends, or holidays.
For ongoing updates, please subscribe to eNews for your lines and check notices posted at your bus stop. Notification alerts can also be received for specific lines when using the AC Transit Official App.
If you have any questions, please contact AC Transit by calling (510) 891-7277 or by e-mailing firstname.lastname@example.org.
- Installation of Transit Signal Priority (TSP) Technology, resulting in priority requests upon bus arrival and additional green light time to reduce time waiting at red lights.
- Bus Queue-Jump Signals, leading to buses bypassing queued vehicles, typically via the right-turn lane.
- Bus Stop Improvements, including paving planter strips and sidewalk area rebuilding to enhance rider safety and access at bus stops.
- Bus Stop Lengthening, providing buses with additional space to align with the curb at stops, to improve boarding access for passengers while improving traffic flow.
- Bus Stop Relocations, proposing to move select stops from the near-side (before a signal) to the far-side of intersections (after a signal). This will result in buses using the transit signal priority for faster bus travel through signalized intersections (see below).
- Bus Stop Removal, reducing travel times by spacing out bus stop locations based on ridership, distance between bus stops and local needs.
East Bay Section Map
Peninsula Section Map
Project Fact Sheet
Frequently Asked Questions (FAQ)
Metropolitan Transportation Commission, California Department of Transportation, City of Union City, City of Fremont, City of Menlo Park, City of Palo Alto, and Stanford University
The Project is funded by the Metropolitan Transportation Commission (MTC), Alameda County Transportation Commission (ACTC) Measure B, California Climate Investment Low Carbon Transit Operations Program (LCTOP) Funds, and Stanford University.
- Fall 2020: Public outreach
- Winter 2020: Finalize design
- January 2023 through Spring 2023: Construction and signal coordination
- Mid 2023: Evaluation