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Caltrans > Local Sites > D12 Internet > District 12 Transportation Management Center

District 12 Transportation Management Center

The District 12 Transportation Management Center (TMC) is the nerve center for our urban freeway and highway systems. Real time information is gathered from many sources such as electronic sensors in the pavement, freeway call boxes, video cameras, 911 calls, officers on patrol, Caltrans highway crews,ramp meter sensors, earthquake monitors, motorist cellular calls, and commercial traffic reporters,which is sent to the TMC 24-hours a day, seven days a week.
Information is received...decisions are made...actions are taken. Dispatch a traffic management team? Route a Freeway Service Patrol tow truck? Dispatch a hazardous materials clean-up crew? Alert motorists via changeable message signs and traffic reports to the media?

Whatever the situation, the TMC provides fast, intelligent and coordinated responses.


Congestion Information-
Interactive Map with real-time traffic and closure information for State Routes in Orange County.

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CHP Traffic Incidents - Up to the minute traffic incidents on California State Routes.
- Provided by CHP

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