摘要
为降低车辆需停车通过信号交叉口的可能性,减少停车时间,针对在三、四线城市交叉口区域实时的车辆排队长度数据不易或无法获得这一实际情况,提出车路协同环境下的车速引导策略。搭建了车载交通灯提醒系统,并对安徽省芜湖市衡山路-凤鸣湖北路交叉口的交通灯进行了数据采集。在实际数据的基础上,运用VISSIM软件进行仿真验证,结果表明,在高峰和平峰流量时车速引导策略均能有效降低单车行程时间,平均降低比率分别为9.2%和13.0%,且改善效果在平峰流量时优于高峰流量时。该车速引导策略提高了信号交叉口的交通效率,为车路协同环境下车速引导的实际有效运用提供了思路。
In order to reduce stopping time of vehicle at a signalized intersection,aiming at the difficulty,even the impossibility to obtain real-time queue length of intersection in third and fourth-tier cities in China sometimes,a speed guidance strategy based on cooperative vehicle infrastructure system is put forward and studied.For validating the strategy,the traffic signal timing data of the intersection at Hengshan Road and North Fengming Lake Road in Wuhu is collected by a vehicular traffic signal reminder system which is designed.The simulation experiments using the acquired data are done by software VISSIM.The simulation results demonstrate that the strategy under high and low traffic flow can effectively decrease the link travel-time,reducing average ratio is 9.2 % and 13.0 %,respectively,and the effect under low traffic flow is better than that under high traffic flow.The strategy improves efficiency of traffic at a signalized intersection and provides an idea for the application ofvehicle speed guidance based on cooperative vehicle infrastructure system.
出处
《河北科技大学学报》
CAS
2017年第5期432-437,共6页
Journal of Hebei University of Science and Technology
基金
国家自然科学基金(51505221)
安徽省博士后研究人员科研活动经费资助项目(2016B086)
国家发改委物联网专项项目((2012)1149)
关键词
无线通信技术
车路协同
交通灯
VISSIM
车速引导
交叉口
wireless communication technology
cooperative vehicle infrastructure system
traffic light
VISSIM
speed guidance
intersection
