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I. Local Signal Synchronization Goals The primary goal is to maintain a safe and efficient transportation network with emphasis on traffic signal synchronization along major corridors. This Local Signal Synchronization Plan will serve as a guide for the implementation and maintenance of optimized signal timing along these corridors. The objective is to reduce delay, number of stops, fuel consumption and air pollution emissions and maximizing the traffic progression through the system. A key focus of the City is improving safety of all roadway users. A well-timed, synchronized system can potentially reduce collisions as a result of improved traffic flow and can also minimize diversion of traffic to local and residential neighborhoods, potentially improving safety and traffic conditions in those areas. The City has been synchronizing its traffic signals since the 1970's with the implementation of the Multisonics Vehicle Management System. Since then the City has continued to upgrade and improve its traffic signal infrastructures and operations. The City's major effort in improving its traffic signal operations and infrastructures began in early 1990's when the City received numerous funding from State of California Transportation System Management grants to implement an Advanced Traffic Management System that included traffic communication infrastructure, new traffic signal system and incorporated many elements of Intelligent Vehicle Highway System such as CCTV, Video detection, and Changeable Message Signs (CMS). Recognizing the needs to maintain uninterrupted traffic flow through adjacent agencies, the City started to work with Caltrans in early 1990's for the City to maintain and operate majority of Caltrans' ramp traffic signals in Santa Ana so they can be synchronized with local traffic signals. Similarly in 1992, the city of Fountain Valley agreed to share the operation of its traffic signals on Harbor Blvd with Santa Ana so Harbor Blvd can be synchronized throughout both cities. Since then, the City has been active in replacing outdated equipment and upgrading traffic signal infrastructures to help achieve its goals of maintaining a safe and efficient network of streets. As part of the effort to maintain traffic flow and reduce congestion, the City actively monitored and synchronized all of its arterial streets. The City completed synchronization on all major arterials in the City in 2004 and again in 2010. The City fully supports and commits to working with OCTA and other local agencies to maintain regional traffic synchronization on all arterials in the OCTA Regional Traffic Signal Synchronization Program. The City has participated in the synchronization of the following RTSSP corridors: • Bristol St Corridor in 2011 • Harbor Blvd Corridor in 2011 • Westminster Ave/17 h St Corridor in 2011 • Euclid St Corridor in 2008 and 2012 • Fairview St Corridor in 2013 • Warner Ave Corridor in 2013 • Tustin Ave/Rose St Corridor in 2013 • MacArthur Blvd/Talbert Ave Corridor 2014 • Bolsa St/First St Corridor 2015 • Edinger Ave Corridor 2015 556-9