A signal control system that uses SPaT messages and vehicle trajectory information to advise connected vehicles can improve throughput by up to 11 percent.

This research evaluated the impacts of V2I messaging at intersections to optimize traffic flow.


Summary Information

This research proposed an eco-driving system for an isolated signalized intersection under partially Connected and Automated Vehicles (CAV) environment. This system was designed to prioritize mobility before improving fuel efficiency, and optimize overall traffic flow by optimizing speed profiles for connected and automated vehicles.


Simulation-based before and after evaluation of the proposed design was conducted. The optimal control problem was solved using Pontryagin’s Minimum Principle.


Throughput benefits ranged from 0.88 to 7.06 percent under a saturated traffic condition and from 1.74 to 10.80 percent under an oversaturated traffic condition. Variations were caused by the market penetration rate of CAVs. No adverse effect is observed when traffic was under-saturated.

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Eco approaching at an isolated signalized intersection under partially connected and automated vehicles environment

Author: Jiang, Huifu; Jia Hub; Shi An; Meng Wang; and Byungkyu Brian Park

Published By: Transportation Research Part C Emerging Technologies

Source Date: 6/1/2017


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Goal Areas


Typical Deployment Locations

Metropolitan Areas


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Benefit ID: 2018-01320