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

  • Improving, integrating weather monitoring for safer roads
    February 6, 2012
    Paul Pisano, USDOT Federal Highway Administration, and Charles Harris, Noblis Inc, chart progress in the US of Maintenance Decision Support Systems for winter maintenance and weather management
  • Integrate systems to reduce roadside infrastructure
    January 27, 2012
    David Crawford reviews promising current developments. Instrumentation of the road infrastructure has grown to become one of the most dynamic sectors of the ITS industry. Drivers for its deployment include global concerns over the commercial and environmental pressures of traffic congestion, the importance of keeping drivers informed throughout their journeys, and the need to reduce accident rates and promote the safety of all road users, for example by enforcing traffic safety rules.
  • VMS pictograms credited with zero “shunt” rate
    November 5, 2013
    Zero standing-traffic related incidents were recorded during UK service provider A-one+’s recent A1 refurbishment project, a result the firm attributes to the deployment of a variable message sign (VMS) package supplied by temporary intelligent transport system (ITS) solutions provider, Mobile Visual Information Systems (MVIS).
  • Record-breaking year for US toll facilities, says IBTTA
    April 1, 2016
    Last year (2015) was a record-breaking year for toll road, bridge and tunnel usage according to a new report from the International Bridge, Tunnel and Turnpike Association (IBTTA). The National Toll Facilities Usage Analysis found that drivers' use of toll roads increased by seven per cent between 2014 and 2015, a record-breaking rate of growth that puts tolling usage on pace to double in less than ten years, says IBTTA. The analysis was compiled by collecting data from 31 toll-operated facilities acros