Traffic engineering maintains the operation of over 135 traffic signals within the city limits.
Joint Signal Timing Coordination
Springfield's Transportation Management Center (TMC) was established in 1998 by the City of Springfield and Missouri Department of Transportation (MoDOT). City and State personnel work side-by-side at the TMC coordinating traffic flow in the metro area.
Within the TMC, city and state personnel utilize the citywide computerized traffic signal system, closed-circuit real-time traffic monitoring camera system, and other useful equipment to address changes in traffic flow patterns and respond to incidents that occur throughout the transportation system. Using the traffic cameras, TMC operators can monitor the flow of traffic along major arterials throughout the city. When incidents such as crashes or stalled vehicles occur, TMC operators can relay valuable information to 911 operators who dispatch emergency response personnel to the scene. TMC operators can also modify the traffic signal programming, if necessary, in an effort to alleviate the impact of such incidents to the flow of traffic.
City and MoDOT engineers work together to program the signal system with the goal of providing the safest, most efficient operation of traffic signals to serve the motorists and pedestrians. The development of the Transportation Management Center and citywide computerized traffic signal system has enabled both agencies to provide a seamless system across multiple jurisdictional boundaries to improve travel times and reduce stops, overall delay, and fuel consumption throughout the community.
At signalized City intersections, the use of pedestrian push-buttons are available with corresponding pedestrian signals to indicate walk and don't-walk times. For more information on the use of pedestrian signals please view our Pedestrian Safety Flyer.
Traffic Signal Installation Guidelines
The City of Springfield follows the Manual of Uniform Traffic Control Devices (MUTCD), established by the Federal Highway Administration, when evaluating the conditions which may warrant the installation of a traffic signal. These guidelines identify specific traffic and pedestrian volumes, crash history, sight distance, and any unusual conditions at the intersection. Below are two warrants out of the total of eight for consideration of a traffic signal as specified in the MUTCD. Any of the following conditions may warrant the installation of a traffic signal.
A traffic signal may be warranted when the total volume of traffic entering the intersection on the major street is at least 500 vehicles per hour for 8 hours of the day and the volume of traffic entering the intersection from he higher volume side street approach is at least 150 vehicles per hour during the same 8 hours of the day.
A traffic signal may be warranted when there are five or more reported crashes of a type susceptible to correction by a traffic signal installation in a 12-month period if adequate trial of alternatives with satisfactory observance has failed to reduce the crash frequency. Crash types susceptible to correction include right- and left-turning collisions with oncoming vehicles as well as right-angle collisions.