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

  • Integrated corridor management 'to enhance travel efficiency'
    August 29, 2012
    New systems of software are coming together to form the technological backbone of a project that will apply practically to one corridor in Dallas, but influence travel across a wider area. Dallas Area Rapid Transit (DART) is the lead agency for an extensive Integrated Corridor Management (ICM) project in Dallas, covering an area stretching north east of downtown Dallas, 20 miles long by two miles wide. The corridor is defined loosely by the US-75 freeway and DART’s light rail ‘red line’. These are the theor
  • Airborne traffic monitoring - the future?
    March 1, 2013
    A new frontier in the quest to monitor road traffic is opening up… but using airborne drones to reduce the jams comes with some thorny issues. Chris Tindall reports. Imagine if you could rely on a system that provided all the data you needed to regulate traffic flow, route vehicles and respond swiftly to emergencies for a fraction of the cost of piloting a helicopter. That system exists, but as engineers and traffic managers start to explore the potential of unmanned aerial vehicles (UAVs) – more commonly k
  • Redflex enforces commitment to ethics
    May 29, 2013
    Redflex has introduced stringent ethical and procedural requirements following an investigation into corruption in Chicago. Like the Phoenix, which also happens to be the name of the company’s home city, Redflex Traffic Systems has been reborn. Following a headline-making public relations debacle late last year, Redflex has reinvented itself, establishing a series of stringent policies and procedures to ensure ethical business conduct, while continuing to deliver the traffic safety technology and services t
  • New solutions for catching texting drivers
    October 28, 2016
    Many countries have laws prohibiting texting while driving but enforcement is proving difficult – David Crawford looks at some new approaches being tried by authorities. Finding definitive solutions – technological, regulatory and educational - to the potentially lethal practice of people driving while using mobile phones is proving elusive, while the stakes grow higher.