摘要
应用Vissim微观仿真模型研究城市快速路菱形立交入口至前方灯控平交路口合理距离,以排队长度为评价指标研究由于平交口信号灯造成各转向车辆的延误,分析了入口下游辅路交织区交织长度随入口至最大排队长度末端距离的变化规律。结果表明:入口至平面交叉口的距离决定于交叉口各转向车辆最大排队长度及交织长度;入口至前方交叉口的合理间距为315 m,条件受限时取值为265 m。
Micro-simulation software VISSIM was used to analyze the reasonable distance between the entrance and the anterior signalized intersection pertaining to diamond interchange on the urban expressway. The queuing length was adopted as an evaluating index to study the different directional vehicles＇ delay attributing to the intersection signals. The varying laws of weaving length of the auxiliary road＇s weaving section of the entrance＇s downstream were analyzed. The result indicates that the distance between the entrance and the signalized intersection is determined by the maximum queuing length of turning cars in all directions and the weaving length, and that he reasonable distance between the entrance and the front signalized intersection is equal to 315m, or 265m when the condition is limited.
出处
《交通与计算机》
2008年第6期87-91,共5页
Computer and Communications
关键词
交通工程
合理间距
交通仿真
城市菱形立交
入口
灯控路口
traffic engineering
reasonable distance
traffic simulation
urban diamond interchange
entrance
signalized intersection
