City
State
Country
Geo Type
Latitude
37.65
Longitude
-121.91
Alameda County, California, United States
Content that references this location
An Adaptive Ramp Metering System on I-880 in the San Francisco Bay Area Reduced Vehicle Hours of Delay by 16 Percent and Bottleneck Congestion by 18 Percent.
METHODOLOGY
An “on/off” evaluation approach was used to assess the performance of the ARM system. Under this method, the ARM system was temporarily deactivated to collect data representing the “off”…
Content type
Date Posted
04/24/2026
Taxonomy (ARC-IT)
Traffic Metering (TM05)
Geolocation links
Coordinated Ramp Metering Systems Implemented in California Showed a Delay Reduction of Up to 9 Percent and Travel Time Reliability Improvement of Up to 28 Percent During Peak Periods.
Methodology
In the “before” period (September-October 2016) the I-80 corridor did not utilize ramp metering. The “after” (September-November 2018) ramp metering system was a CRM algorithm based on…
Content type
Date Posted
10/25/2022
Taxonomy (ARC-IT)
Traffic Metering (TM05)
The California PASS Program implemented GPS signal communications at 50 traffic signals in San Francisco for $529,484.
The Bay Area’s Program for Arterial System Synchronization (PASS) assisted three local counties with retiming their traffic signals to help improve the safe and efficient operation of traffic signal…
Content type
Made Public Date
10/31/2017
Taxonomy (ARC-IT)
Regional Traffic Management (TM07)
Geolocation links
