Tag Archives: 9000 traffic sensors

9,000 traffic sensors Not Working on Los Angeles freeways

November 25, 2013   Guest Author

a regional map of traffic flow from sensors on Los Angeles County freeways is seen on a computer screen at the Los Angeles Regional Transportation Management Center in Los Angeles. Free-flowing traffic seen as green dots, with yellow and red dots indicating slowing to very slow traffic. The grey dots represent inoperative traffic sensors. About one-third of traffic sensors that Caltrans operates on highways statewide do not work. There are various reasons for this, including equipment failure, copper wire theft and construction projects that sever the systems locally.

Buried under thousands of miles of pavement are 27,000 traffic sensors that are supposed to help troubleshoot both daily commutes and long-term maintenance needs on some of the nation’s most heavily used and congested roadways. And about 9,000 of them do not work.

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