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

  • Delcan to develop first multi-modal, real-time decision support system in US
    January 27, 2012
    Delcan is to lead the effort to install a new, one of a kind integrated corridor management (ICM) system along a 35-km section of I-15 in San Diego, California. The system will make use of Delcan's Intelligent NETworks product, which will manage multiple modes of transportation and provide a real-time, multimodal decision support system (RTMDSS) that will implement and integrate technologies and concepts that have yet to be used in the United States.
  • ITS World Congress debates perceptions of enforcement
    December 4, 2012
    The technical programme of this year’s ITS World Congress in Vienna includes a special session on the image of enforcement. ITS International examines the scale of the problem and what can be done about it. Debate on the merits and difficulties of enforcing speed limits appears centred on a conflict of principles. Put very simply, local communities, people living close to busy or hazardous roads, want to see traffic speeds calmed. Drivers on those roads, on the whole, want their principle of freedom to be m
  • California authorises Baidu to test AVs
    February 2, 2021
    Cars can drive on specific roads up to 45 miles per hour - but not in fog or heavy rain
  • Kent County Council and Highways England partner on road management
    June 3, 2015
    Drivers in Kent are set to benefit from better journeys thanks to a new agreement between Kent County Council and Highways England. The new partnership agreement will improve planning and communication between the two organisations and improve journeys for the many thousands of drivers who use Kent’s road network every day. The two organisations will share information about incidents better to improve the information on the county’s message signs. Roadworks will be co-ordinated to ensure that the dive