Why coordinate signals?
Motorists encounter traffic signals in nearly every route they travel, and although signalized intersections increase safety, they can be a source of delay and frustration. Traffic signal coordination is a cost effective way to improve the flow of traffic along a specific corridor. By retiming existing traffic signals to current traffic patterns, the efficiency of each intersection will increase dramatically. Improved traffic flow produces reduced intersection delays, lower air pollution/vehicular emissions, and reduced gasoline consumption. The goal of coordination is to get the greatest number of vehicles through the system with the fewest stops in a comfortable manner. While it would be ideal if every vehicle entering the system could proceed through the system without stopping, this is not possible even in a well-spaced, well-designed system. Not all City streets warrant coordination. Typically, a street is selected for coordination if it carries a certain amount of traffic along t
