TransCore Awarded City of Santa Rosa, Calif., Contract to Provide Real-Time Traffic Monitoring: Adaptive Signal Control System to Ease Congestion in Sonoma Wine Country's Largest City

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TransCore was awarded the Santa Rosa, Calif., contract to implement adaptive traffic control technology at nine intersections along a 2.5-mile section of College Avenue to relieve congestion and reduce backups. The system is expected to be fully operational by May 2007.

An adaptive system capable of providing instantaneous analysis of traffic flow and adjusting on the spot is an enormous advantage to managing congestion

    Santa Rosa, the largest city in Sonoma County and the fifth largest in the Bay Area, is located 55 miles north of San Francisco and is surrounded by nearly 200 vineyards and wineries. Sonoma County hosts more than 5 million visitors a year and experiences fluctuating demand on its roadway system. Consequently, the City of Santa Rosa incorporated intelligent transportation systems to expand the capabilities of its transportation infrastructure and manage bottlenecks in traffic flow.

"An adaptive system capable of providing instantaneous analysis of traffic flow and adjusting on the spot is an enormous advantage to managing congestion," said John Worthington, president of TransCore.

The system, known as SCATS or Sydney Coordinated Adaptive Traffic System, for which TransCore is the exclusive U.S. reseller, operates in real time to adjust signal timing in response to changes in traffic demand and system capacity. By using video detection and or inductive loops installed within the road pavement to measure traffic at each intersection, the program adapts and adjusts to varying traffic flow by changing the timing of intersection lights. This immediate correction results in reduced traffic congestion and travel times. SCATS is currently one of the most widely used adaptive traffic control systems in the market controlling more than 20,000 intersections around the world and more than 900 intersections in the United States.

Deployed in other areas, adaptive traffic management has provided marked improvement in congestion mitigation. Outside San Diego in Chula Vista, Calif., delays were reduced by an extraordinary 43 percent. In Menlo Park, Calif., near San Francisco, travel time was reduced up to 28 percent. The City of Santa Rosa is considering expanding the system to other locations throughout the city.

About TransCore

TransCore is dedicated to driving inefficiencies out of surface transportation through innovation. The company's almost 70-year heritage supporting the transportation industry spans a range of offerings for the toll, traffic management, airport, parking, access control, rail, intermodal, trucking, and homeland security markets. With installations in 46 countries, more than 100 patents, and pioneering applications of RFID and satellite communications technologies, TransCore's expertise is unparalleled in the markets it serves. In 2006, Engineering News-Record (ENR) ranked TransCore No. 57 out of the Top 500 Design Firms and No. 11 for firms that specialize in transportation while Inbound Logistics Magazine ranked TransCore as one of the Top 100 Logistics providers.

TransCore operates as a unit of Roper Industries, a market-driven, diversified growth company with 2006 revenues of $1.7 billion, a market capitalization of over $4 billion, and is a component of the S&P MidCap 400 and Russell 1000 Indexes. For more information, visit

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Barb Catlin
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