Signal optimization model can increase intersection efficiency by 16 percent compared to actuated signal control.
Research develops an eco-traffic signal system that can improve fuel consumption and delays at an isolated intersection using Connected and Automated Vehicle (CAV) Technology.
Made Public Date

A Design of Cooperation between Traffic Signal and Connected Automated Vehicles

Summary Information

The objective of this study was to further advance the idea of CAV-signal cooperation closer towards real world implementation. The proposed CAV-signal cooperation system consists of an eco-driving process and a mixed-integer linear traffic signal optimization model. The model is a revised and adapted version of the signal priority component in the Multi-Modal Intelligent Traffic Safety System (MMITSS) bundle.

The system was tested only for one case scenario at a common four-leg intersection with eight-movements. Each leg had one left-turn lane and one through/right-turn shared lane. This intersection was simulated with 100% CAV in commercial microscopic simulation tool VISSIM. The proposed control system was then compared with a conventional actuated signal controller.


The proposed controller only needs 145 seconds to let pass all 117 vehicles, while the actuated signal controller needs almost 172 seconds, making the proposed controller 15.7 percent more efficient.

Goal Areas
Results Type
Deployment Locations