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

  • Outsourcing security weakness for Sweden’s driver and vehicle data
    October 24, 2017
    The security of driver and vehicle data hit the headlines this summer in Sweden and its authorities are still dealing with the fallout. David Crawford reports. epercussions from Sweden’s vehicle data outsourcing scandal continue to reverberate. Transportstyrelsen, the government’s transport agency, came under fire this summer for risking the personal security of over five million motorists by failing to implement full security checks on personnel in other countries to whom individual work packages could
  • Arizona DOT upgrades camera system
    February 22, 2013
    Arizona’s traffic operations centre was built more than twenty years ago; the first traffic camera was installed over Interstate10 in 1990. That’s all changed now thanks to a recent US$2.1 million upgrade of the camera system by Arizona Department of Transportation (ADOT) which replaced cables with fibre optic lines, so the cameras now show fresh images every ten seconds rather than every five minutes. The upgrade has also replaced the 32 video screens in the traffic operations centre, enabling staff to sca
  • US states target wrong-way drivers
    February 25, 2014
    Two states in the US, Florida and New York are working to reduce the risk of accidents caused by wrong-way drivers. In Florida, a six-month study conducted by Dr Haitham Al-Deek of the University of Central Florida found that only 10 per cent of drivers who witness a wrong-way driver called the police. The study does show that the number of ticketed wrong-way drivers has increased since 2005 and so have the calls to 911 reporting those drivers. "I do believe they happen more than
  • Activu and Mitsubishi give New Jersey controllers the big picture
    May 27, 2014
    Mitsubishi and Activu team up to help New Jersey emergency centre with real-time situational awareness. Sandy was the largest Atlantic hurricane in recorded history, with winds spanning an area of 1,100 miles and damages estimated at $68 billion. It killed at least 286 people in seven countries, from Jamaica to the Jersey Shore. But tropical storms are not the only challenge for emergency operations up and down the East Coast.