基于实时车流感知的端限量式单通道车辆通行控制方法

针对限量式单通道双向通行控制问题,基于GPS车流感知数据提出了一种端限量式单通道双向自适应通行控制方法。通过在单通道及两端划设扫描区、等候区、单通道内三大类区域,利用GPS定位数据实时感知分析车辆在单通道两端行驶的10种状态,构建了单通道车辆通行控制策略分析模型,对车流数据进行动态汇总和饱和度分析,然后根据"按需分配"和"端总量控制"策略提出了一种自适应双向通行信号控制策略,在此基础上研发了端限量式双向通行自适应信号控制系统.最后利用某大型露天矿单道平硐进行了实例验证,应用表明:该方法能够有效控制单通道车辆的双向限量通行,避免了车辆运输过程中的行驶冲突,减少了车辆"空等"时间和油耗,提高了单通道通行效率,大大提高了车辆的运输效率.

A traffic control method for single channel with limited vehicles based on dynamic real-time traffic flow

In order to solve traffic conflict in narrow single channel, improve traffic efficiency and ensure traffic safety and adaptive control in traffic signal of single channel ends with traffic flow dynamic detection, a traffic control method for single channel with limited vehicles based on GPS real-time traffic flow has been put forward. Firstly, the three regions of scanning area, waiting area, single channel should be divided in single channel and ends. Using GPS positioning data, ten states of vehicle can be confirmed by real-time traffic flow analysis. The analysis model of single channel traffic control strategy is built to dynamically summarize the traffic flow data and analyze saturation of traffic flow. Then, the principles of "to each according to his needs" and "total quantity control at the ends" are adopted. A adaptive traffic signal control method is put forward. Finally, this method is applied in a single adit of large open pit to control traffic. The application shows that:it not only effectively controls two-way limited traffic of single channel, but also avoids traffic conflict of transport vehicles, reduces the "waiting in vain" time and vehicles' fuel consumption and greatly improve the traffic efficiency of vehicles.