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William Preston Lane Jr. Memorial (Bay) Bridge Automated Lane Closure System Project

The Bay Bridge automated lane closure system (ALCS) is a project constructed for opening and closing lanes for two-way traffic operations on the bridge. Since two-way operations were implemented, lane closures have been done manually. The ALCS will enhance the current manual system for motorists by allowing maintenance crews to remotely implement and discontinue two-way traffic on the Bay Bridge’s Eastern and Western Shores.

The ALCS will include overhead lane-use signals, dynamic message signs, horizontal swing gates, and illuminated pavement markers. These enhancements will be integrated into the existing bridge traffic control system.

Work on the project, such as conduit boring and installation, began in February 2020 on the Eastern Shore and January 2021 on the Western Shore. In Fall 2022, the automated lane closure system will be in place. After the system is live, the MDTA will provide a transitional period with some manual support of the gates system to familiarize motorists to the closure scenarios.

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Automated Lane Closure System (ALCS) Simulation

Bay Bridge Automated Lane Closer System Project Banner

The Bay Bridge automated lane closure system
(ALCS) is a project constructed for opening and
closing lanes for two-way traffic operations on the
bridge. Since two-way operations were implemented,
lane closures have been done manually. The ALCS
will enhance the current cone and barrel system by
allowing remote implementation and discontinuation
of two-way traffic on the Bay Bridge’s Eastern and
Western shores.

The ALCS will include overhead lane-use signals,
dynamic message signs, horizontal swing gates, and
illuminated pavement markers. These enhancements
will be integrated into the existing bridge traffic
control system.

SAFETY BENEFITS

  • Increase safety – reduces crashes
  • Superior incident response
  • Safer work environment for employees

CUSTOMER SAVINGS BENEFITS

  • Less set-up time – reduces congestion associated with manual lane closure operations (cones, signs, arrow panel set-up)
  • Advance notice for incidents – increases safety associated with late lane changing
  • Increases reliability

Contraflow Gate

The above swing gate will replace the current cone and barrel system, allowing remote implementation and discontinuation of two-way traffic while ensuring motorist safety, ease of integration and operational efficiency.

ABOUT CONSTRUCTION

Work on the project, such as conduit boring and installation, began in February 2020 on the Eastern Shore and January 2021 on the Western Shore. In Fall 2022, the automated lane closure system
will be in place. After the system is live, the MDTA will provide a transitional period with some manual support of the gates system to familiarize motorists to the closure scenarios.

Additional Information

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