Chapter Two automatic Control 2. 6 Urban traffic control system Total travel Traffic Urban Traffic Lights Flow Detectors Occupancies URBAN O-D Demand NETWORK envronme Control ALD COMPUTER Strategy Estimation Prediction Mi Of total Travel time Example Urban traffic control system2.6 Urban traffic control system Traffic Lights Urban Traffic Flow Loop Detectors Control Strategy A.I.D Estimation Prediction O-D Demand environme nt Total travel time URBAN NETWORK COMPUTER Minimization Of total Travel time Flows Occupancies Example : Urban traffic control system Chapter Two Automatic Control