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

  • Advanced traffic management amid urbanisation
    July 30, 2020
    There is no room for error on the crowded roads in many cities: Andrew Watson of Huawei explains why AI is a perfect tool to help urban authorities and transportation agencies look after people in busy traffic
  • Aimsun online modelling tool for Interstate 15
    June 14, 2016
    The TSS (Transport Simulation Systems) team is using ITS America 2016 San Jose to showcase the latest developments to the Sandag (San Diego Association of Governments) integrated corridor management system on Interstate 15 in San Diego. Fresh from picking up yet another award last month (the California Transportation Foundation award for Operational Efficiency Program), this pioneering ICM project centres around a decision support system for which TSS provides the Aimsun Online modelling tool. Thanks in
  • High level support for US DOT decision on vehicle to vehicle technology
    February 4, 2014
    The US Department of Transportation's (DOT) National Highway Traffic Safety Administration (NHTSA) is to begin taking steps to enable vehicle-to-vehicle (V2V) communication technology for light vehicles. This technology would improve safety by allowing vehicles to communicate with each other and ultimately avoid many crashes altogether by exchanging basic safety data, such as speed and position, ten times per second. DOT research indicates that safety applications using V2V technology can address a large
  • EU rules extend the ‘long arm of the law’
    November 27, 2013
    New EU legislation allows authorities to collect fines from errant foreign motorists even after they have returned to their own country. New European Union legislation means drivers in many Member States can be prosecuted for breaking traffic laws when driving outside their home country. While not all the Member States will not be signing up to Directive 2011/82/EU facilitating the cross-border exchange of information on road safety related traffic offences, for those that do the deadline date to impleme