Skip to main content

California DOT installs driver information signs

California DOT (Caltrans) is installing electronic message signs in an effort to prevent or reduce congestion on the heavily used Interstate 10. Vehicle detection systems have also been installed on the 133 mile stretch of freeway to monitor traffic. The detection systems monitor speed and traffic volume, processing the data and transmitting it to the freeway message signs to give motorists real-time journey time estimates. "Changeable message signs will allow us to deliver information directly to drivers
January 29, 2013 Read time: 2 mins
California DOT (3879 Caltrans) is installing electronic message signs in an effort to prevent or reduce congestion on the heavily used Interstate 10.  Vehicle detection systems have also been installed on the 133 mile stretch of freeway to monitor traffic.

The detection systems monitor speed and traffic volume, processing the data and transmitting it to the freeway message signs to give motorists real-time journey time estimates.

"Changeable message signs will allow us to deliver information directly to drivers before they encounter large traffic back-ups," said Caltrans district 8 director Basem Muallem. "Motorists will be able to take an alternate route to avoid long delays."

The systems were implemented as part of the state's obligations under the Interstate 10 Lifeline Emergency Action Plan.  The Board of Supervisors unanimously agreed in October to partner with the state and tribal governments on implementing the plan, inspired by a series of massive traffic jams on I-10 that left motorists stranded in the last several years, most recently in February 2012.

Caltrans spokeswoman Terri Kasinga said the detection systems' project had been under way since before last February's crunch, but state officials expedited it to meet the action plan goals.

"We are very pleased to see Caltrans move ahead with their pieces of the plan," said Juan Perez, director of the county's Transportation and Land Management Agency. "The traveller information projects will be completed by the end of this year with the larger freeway bypass projects coming later."

For more information on companies in this article

Related Content

  • Fuel cell system sets record
    April 16, 2012
    UTC Power, a United Technologies company, has announced that one of its latest generation PureMotion System Model 120 fuel cell powerplants for hybrid-electric transit buses has surpassed 10,000 operating hours in real-world service with its original cell stacks and no cell replacements. This powerplant is aboard an Alameda-Contra Costa Transit District (AC Transit) bus operating in the Greater Oakland, California area.
  • ITS awards for Montana university projects
    September 26, 2014
    The One-Stop Shop for Traveller Information (OSS), a website that integrates weather and road information from multiple western states, developed at Montana State University’s Western Transportation Institute (WTI), has been awarded an international award from the Intelligent Transportation Society of America (ITS America). The OSS provides travellers with current road information that does not stop at jurisdictional boundaries. Combined with real-time weather information, the OSS provides motorists with
  • Advanced controllers standing out in A crowd
    February 28, 2013
    TransCore has been helping New York City’s Department of Transportation (NYDOT) with its ITS efforts since the early 1980s, via various consultancy services contracts. The company is currently working for the city under an IDIQ (indefinite quantity) contract and a separate ITS maintenance contract. According to TransCore vice president Bob Rausch, who has witnessed much of New York’s ITS development, the three main ‘building blocks’ of the city’s ITS infrastructure have developed simultaneously over recent
  • Walk | Don’t Walk – actually, just Don’t Walk
    March 17, 2025
    In 1925 a traffic ordinance was introduced in Los Angeles. The 100-year anniversary is significant because, transportation historian Peter Norton suggests, the law in effect set the blueprint for car-dependency across the US. Adam Hill asks him how…