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MacArthur Boulevard/ Talbert Avenue Signal Synchronization Program, Santa Ana, CA Year completed[2014 Client name: Orange County Transportation Authority Contact person and phone number: Vinh Nguyen, PE; (714) 647.5612 Team members; Stantoostaft Relevancy: Improved traffic flow along high -volume arterial, revamped control equipment, critical City roadway We optimized traffic flow along this high -capacity arterial road by synchronizing 26 traffic signals —improving existing systems with now control equipment to accurately monitor conditions, improve communication capabilities, and better respond to traffic needs. The existing traffic signal.00ntrol and Interconnect equipment was upgraded to be fully compatible. The upgrade improved commonfcstions between each clty's traffic management centers, allowing regional communication exchange about status and programming. New timing plans were developed permitting for increased compatibility across the city boundaries. All 26 existing signals were synchronized based on four time periods; earty morning; noon, evening peak, and off-peak. We used signal timing software to account for day-to- day variations In traffic flows. Before and after travel times and delay studies were fine-tuned by our skilled staff, making slight adjustments to traffic signal timing parameters to improve performance, reallocate green time, and adjust the sequencing slightly reducing stops and delays. Campus DrivelBristol Street Intersection Improvement, Orange County, CA Year completed: 2016 Client name: John Wayne Airport Contact person and phone number: Steven Carrillo; (049) 252-6020 Team members: S. Weihmeier (Project Manager), S. Reid (Project Engineer) Relevancy: Full PS&Es and construction support services through project completion, comprehensive A•E services; improved traffic flow and safety We provided architecture and engineering services to widen southbound Campus Drive and an additional 600•foot•long, third right -turn lane onto northbound Bristol Street. Our work Included partially demolishing and reconstructing an existing maintenance building, reconstructing existing traffic facilities, installing a new overhead sign, relocating utilities, and providing minor grading and re -vegetation. We coordinated closely with JWA, the County of Orange, Caltrans, and the City of Newport Beach to satisfy stakeholder's needs. We provided full PS&Es and construction support services throughout the successful project completion. s s