Eco-oriented signal control of intersections with vehicle type considerations using integrated estimation of driving behavior

Abstract

Significant effects at signalized intersections include the cost associated with extra travel time, fuel consumption, and gas emissions due to the stop-and-go or idle process of vehicles waiting for traffic lights. Based on vehicle instantaneous states, this paper firstly develops a mathematical function of ecological cost to quantify the monetary impact of the signal control scheme on users and the environment. And then, this paper contributes to developing a vehicle kinematic model to describe the vehicle movement process and estimate the instantaneous states (i.e., speed, acceleration/deceleration) by second, and correspondently proposing a new eco-oriented signal control framework at isolated intersections. Finally, the proposed travel time cost and ecological cost are taken as measures of effectiveness to identify four key factors of the eco-oriented model in traffic volume in key signal phases, directional volume ratio, electric vehicle ratio, and bus ratio. This study found the eco-oriented signal method led to a significant difference in ecological cost reduction of 5% or more compared to the delay-oriented control group under the low traffic volume in key phases, the electric vehicles dominate and no less than 5% of bus ratio.