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An Open Traffic Light Control Model for Reducing Vehicles' \hbox {CO}_{2} Emissions Based on ETC Vehicles

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2 Author(s)
Chunxiao Li ; Grad. Sch. of Global Inf. & Telecommun. Studies, Waseda Univ., Tokyo, Japan ; Shimamoto, S.

Usually, vehicles' stop-and-go driving will consume more fuel and emit more CO2 than constant speed driving. To reduce vehicles' CO2 emissions, vehicles' travel should be smoothed by reducing the stop-and-go times. In this paper, a three-tier structure is proposed to realize dynamic traffic light control for smoothing vehicles' travel. In tier-1, an electronic toll collection (ETC) system is employed for collecting road traffic flow data and calculating the recommended speed. In tier-2, radio antennas are installed near the traffic lights. Road traffic flow information can be obtained by wireless communication between the antennas and ETC devices. In tier-3, a branch-and-bound-based real-time traffic light control algorithm is designed to smooth vehicles' travels. After smoothing vehicles' travels, more vehicles can pass intersections with less waiting time and fewer short-time stops; therefore, the vehicles' CO2 emissions can be reduced. Simulation results indicate that the proposed scheme performs much better than the adaptive fuzzy traffic light control method: The average waiting time, short-time stop times, and CO2 emissions are greatly reduced, and the nonstop passing rate is greatly improved.

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:61 ,  Issue: 1 )

Date of Publication:

Jan. 2012

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