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SCL 85 RAMP METERING AND TRAFFIC OPERATING SYSTEM - ROUTE 280 TO 101- FACT SHEET - EA 04-15420

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  • 12/7/12 - SR-85 Ramp Metering Project

  • 12/7/12 - New Ramp Metering Will Make Getting on State Route 85 Easier, Safer for South Bay Drivers

  • The Project

    This project will install 11 ramp metering elements and traffic operations systems, in Santa Clara County, on Route 85 from Route 280 to Route 101. There will be also 5 ramp widening and construction of 1 retaining wall, 9 MVPs, and 1 CHP Enforcement Area.

    The Need

    The Route 85 experiences heavy congestion during peak periods. Some of the congestion and breakdown in traffic flow on Route 85 is caused by platoons of vehicles entering at unmetered on-ramps and merging with the mainline traffic. Since installation and implementation of a ramp metering system on freeway is an effective operation tool of overall efficiency of a transportation corridor, the expansion of the ramp meter program is needed.

    Benefits

    The implementation of ramp metering systems will minimize gridlock of the freeway system, decrease travel time and improve mobility through the corridor during the peak hours.

    Partnership

    The project is developed through a partnership between Metropolitan Transportation Commission (MTC) and the California Department of Transportation (Caltrans).

    Project Funding

    The total cost of the project is estimated at $12.668 million ($9.568 million Capital and $3.1 million Support.)

    The funding sources: The Capital Cost of the project is $9.532 million: $1.532 million from State’s Corridor Mobility Improvement Account (CMIA) Funds and $8.0 million from State Highway Operation and Protection Program (SHOPP) Funds.

    Project Schedule

    Start Construction: November 2012
    Finish Construction: Winter 2014

    Summary

    The Route 85 Ramp Metering and Traffic Operation System between Route 880 and Route 101 are necessary to reduce travel times during peak hours.