DEVELOPMENT OF REAL TIME DETECTOR DATA INTERPRETATION MODEL AT SIGNALIZED INTERSECTIONS

摘要

This paper explores a microscopic traffic model (a Kinematic Car-following model at Signa lized intersections: a KCS traffic model) based on one-dimensional kinematic equations in physics. The formulae are derived for two different vehicle groups: a trajectory equation for the leading vehicle and a trajectory equation for the following vehicles. Hence, in each time-step, the KCS traffic model can represent detailed motion of vehicles from the upstream detector to the downstream free-flow position including the stop-line, and can provide plenty of trajectory information between them. A comparative evaluation in sensitivity of delay with respect to the variations in the start of green time between the proposed KCS traffic model and the previously known linear traffic model (the Vertical queueing model) is discussed.