Traffic Engineering and Circulation assesses neighborhood traffic concerns; implements corrective measures to enhance vehicle, bicycle, and pedestrian safety; provides for the management, operation, preventive maintenance, and repair of City-owned traffic signal equipment; and operates the Irvine Traffic Research and Control Center (ITRAC). Designated and Restricted Truck Route Map TRAFFIC ENGINEERING and CIRCULATION City of Irvine One Civic Center Plaza P.O. Box 19575 Irvine, California 92623-9575 (949) 724-7365