Signal Synchronization

LADOT has synchronizing 100% of the traffic signals in the City of Los Angeles to improve traffic flow and minimize congestion.

The final phase (FY 2005 – FY 2013) was made possible through funding provided by state Proposition 1B and secured by Mayor Antonio Villaraigosa.

Our advanced system enables traffic engineers to monitor traffic conditions and make real-time signal timing adjustments to handle emergencies and special events.

The most advanced part of our system is “adaptive”, meaning that traffic signals automatically change timing in response to different travel volumes and patterns at different times of the day.

LADOT also is using our traffic signal system to prioritize light rail service and Rapid Bus service operated by Metro.

To learn more about the ATSAC Center Operations check out our Fact Sheet.