Abstract: In order to realize the intelligent traffic control and improve the efficiency of road intersection under vehicle-infrastructure cooperative environment, an intelligent control strategy of intersection based on gap theory was proposed. The conflict area range calculation model for different types of conflict points at intersections was established, and the mathematical models of vehicle clearance control and vehicle state adjustment were developed. The rationality and effectiveness of the proposed model were verified by joint simulation of VISSIM and MATLAB. The results show that the proposed model can realize intelligent control of the intersection, make the conflicting vehicles pass through the conflict points alternately, and realize the safe passing through the intersection without stopping. Compared with the traditional signal control, the proposed intelligent control strategy can significantly reduce the travel time and delay time of vehicles passing through the intersection, and effectively reduce the vehicle pollutant emission and fuel consumption.

Key words: traffic engineering; vehicle-infrastructure cooperation; gap control; intersection; conflict point; alternately intersperse; intelligent control strategy

摘要： 为实现车路协同环境下智能化交通通行管控，提高道路交叉口通行效率，基于间隙理论提出了一种交叉口智能控制策略；针对交叉口不同类型冲突点建立了冲突区域范围计算模型；开发了车辆行车间隙控制与车辆状态调整数学模型；运用Vissim和MATLAB联合仿真对模型合理性与有效性进行了验证。结果表明：所建模型能实现交叉口智能控制，使相冲突的车辆交替穿插通过冲突点，实现安全地不停车通过交叉口；相较于传统信号控制，该智能控制策略能够使车辆通过交叉口的行程时间和延误时间显著降低，有效降低车辆污染物排放与油耗。

关键词: 交通工程；车路协同；间隙控制；交叉口；冲突点；交替穿插；智能控制策略