A well-timed, coordinated system permits continuous movement along a road with minimum stops and delays, reducing fuel consumption and improving air quality. ​

The Maryland Department of Transportation State Highway Administration (MDOT SHA) reviews timing on coordinated signal systems every three years, or as needed. We use computer models to examine timing strategies and identify timing plans that improve traffic with the greatest possible safety and efficiency. Timing plans serve rush hours, midday and evening traffic, seasonal traffic, special events and incidents. By matching traffic signal cycles to traffic patterns, traffic flow becomes more efficient, safety is increased and emissions are reduced.