Signal Timing Optimization (STOP)

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Signal Timing Optimization Program (STOP) helps traffic GO

Outdated and inefficient signal timing can cause unnecessary delay and congestion, which degrades air quality. NOACA implemented STOP to improve corridors by optimizing traffic signals. A targeted approach to signal timing helps:

  • Improve air quality
  • Reduce fuel consumption and vehicle emissions
  • Minimize travel time and delays
  • Maximize traffic flow
  • Improve safety for motorists, bicyclists, and pedestrians

Using technical criteria, corridors within the region were ranked based on the degree of likelihood to reduce emissions and improve operations. Based on these criteria, in December 2017, the Board of Directors issued a $456,552 contract to study two new corridors:

  • SOM Center Road (in Eastlake, Willoughby, and Willoughby Hills)
  • West 150th/Warren Road (in Lakewood, Cleveland and Brookpark)

Signalized corridors that have been improved previously under the STOP program include:

Findings from the project evaluation show that vehicle emissions, travel time, and travel time variability have been reduced in both corridors.  Reductions in fuel consumption ranged from 3.8% to 12% and reductions in total delay ranged from 16% to 37%!