Single Lane Microscopic Traffic Flow Model Based on Multi-Agent in CVIS Circumstance

Abstract:

CVIS (Cooperative Vehicles Infrastructure System) is different from traditional traffic circumstance and traditional traffic flow models which are based on traditional traffic circumstance are not adept to describe the traffic flow characteristics in CVIS circumstance. Concepts and attributes list of VMA (Vehicle Multi Agent) are presented at first. Then, decision strategies in both traditional circumstance and CVIS circumstance are compared to analysis differences in traffic status judgment and decision at intersection and link between two circumstances. Based on those, single lane traffic flow models in CVIS circumstance are presented in this paper. Microscopic traffic flow models such as acceleration and deceleration are given in this paper. Furthermore, the intersection impacts are also considered in this paper to analyze signal influence. The numeral experiments analyze the trajectories and macroscopic parameters, such as total travel time, average travel time and average delay, in both circumstances. The results show that VMAs in CVIS circumstance have great decline in total travel time, average travel time and average delay time which indicate that vehicles in CVIS are more stable and successive than those in traditional circumstance. Beside, velocity variances in CVIS are lower than those in traditional circumstance which increases the fleet stable.