高速公路多匝道远程协同控制技术研究

Research on multi ramp remote cooperative control technology for Freeway

摘要:

传统高速公路多匝道控制方法大多是使用线圈进行参数采集，使交通调节率计算不精准，导致技术控制精准度较低，针对该问题，提出了多匝道远程协同控制技术研究。结合高速公路协同环境，限制主线交通，计算车辆进入路网后周期性路径距离和预测时间的通行成本，根据实际路况对系数进行调整，当参数系数为0时，通行成本最低即为最优规划路径，并触发路径诱导执行。充分考虑匝道总流量约束条件，执行诱导方案，获取最短控制周期，使用模糊逻辑算法计算控制周期内的控制率，从而实现多匝道控制目的。通过实验对比结果可知，该技术控制精准度较高，为保障高速公路安全运行奠定基础。

Abstract:

Traditional freeway multi-ramp control methods mostly use coil to collect parameters, which makes the calculation of traffic regulation rate inaccurate and leads to low precision of technical control. To solve this problem, a multi-ramp remote cooperative control technology is proposed. Combining with the cooperative environment of expressway, the paper restricts the main line traffic, calculates the traffic cost of periodic route distance and prediction time after vehicles enter the road network, adjusts the coefficient according to the actual road condition, and when the parameter coefficient is 0, the lowest traffic cost is the optimal planning path, and triggers the route guidance and execution. Taking full account of the ramp total flow constraints, the induction scheme is implemented to obtain the shortest control cycle, and the fuzzy logic algorithm is used to calculate the control rate in the control cycle, so as to achieve the purpose of multi-ramp control. The experimental results show that the control precision of the technology is high, which lays a foundation for the safe operation of expressway.