Adaptive Signal Systems Studies

Poor traffic signal timing contributes to traffic congestion and delay. Conventional signal systems use preprogrammed, daily signal timing schedules. Adaptive signal control technology adjusts the timing of red, yellow, and green lights to accommodate changing traffic patterns and eases traffic congestion. The main benefits of adaptive signal control technology over conventional signal systems are that it can:

• Continuously distribute green light time equitably for all traffic movements
• Improve travel time reliability by progressively moving vehicles through green lights
• Reduce congestion by creating smoother flow
• Prolong the effectiveness of traffic signal timing