T2.2 Congestion mitigation *
Develop congestion mitigation programs to increase transportation efficiency, reduce delay, and reduce emissions such as signalization coordination improvements along with application of speed harmonization techniques (ex. reevaluate speed limits, roundabouts vs signalized intersection, street connectivity). Added benefits are decrease idling time (pollution) and improve fuel efficiency (cost savings to driver).
Traffic signals
According to the Federal Highway Administration’s webpage on adaptive signal control technology, adjusting the timing of lights to accommodate changing traffic patterns and ease traffic congestion improves average travel time and reduces emissions by 10 percent or more and can improve travel time by 50% in areas with particularly outdated signal timing. (Currently these systems are used on about 1% of US intersections.)
The FHWY’s Accelerated Innovation Deployment program has provided matching grants for signal control projects; the Department of Transportation’s BUILD program has provided funding for them as well.