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

  • Abu Dhabi installs Scoot
    March 5, 2014
    The Department of Transport (DoT) in Abu Dhabi has commenced work on a US$9 million adaptive traffic control central system project, which is expected to be completed by early 2015. The project will see the implementation of a new Scoot (Split Cycle Offset Optimisation Technique) adaptive traffic control system to improve traffic flow at the capital’s 125 main signalised junctions. Scoot, installed in more than 120 cities worldwide, is a tool for managing and controlling traffic signals in urban areas.
  • New Haven shows small can be beautiful
    October 22, 2014
    Connecticut’s new administration is using smart policy and ITS solutions to bridge social divides. Andrew Bardin Williams investigates. With only 130,000 residents, New Haven can hardly be called a metropolis. Measuring less than 502km (18 square miles), the city is huddled against the coast, squeezed between two mountains (appropriately called East Rock and West Rock) that, at 111m and 213m (366ft and 700ft) respectively, can hardly be called mountains. The airport is small and has limited service, and th
  • Singapore extends real time message signs
    September 16, 2013
    Motorists in Singapore can look forward to improved real-time traffic information and better traffic flow as the country’s Land Transport Authority (LTA) begins works to enhance existing electronic signboards along the expressways. The 380 existing island-wide expressway motoring advisory system (EMAS) electronic signs will be replaced with thirteen new signs. The new signs will be more readable, as they can display text and simple graphics in up to seven colours, including green, cyan and purple. The first
  • Hella and Autoliv sign license and cooperation agreement
    May 18, 2012
    Hella Aglaia Mobile Vision, a subsidiary of Hella KGaA Hueck & Co., and Autoliv have agreed to cooperate and further develop their automotive forward-looking vision systems together. As part of the agreement that bundles the competencies of both companies, Hella Aglaia is selling an exclusive license on monovision based algorithms for traffic sign recognition (TSR), lane detection and light source recognition to Autoliv. By monitoring traffic signs, TSR helps the driver to keep the correct speed and follow