以提高服务水平为目标的自行车网络参数优化

以提高服务水平为目标,在已知特定区域自行车出行交通起止点(origin destination,OD)分布的条件下,提出城市自行车网络参数(主要为自行车专用道间距和自行车道宽度)优化方法。采用关键设计参数的不同组合建立多个测试场景,运用Cube仿真模型进行测试分析,得出出行总时间、平均速度、道路饱和度等服务水平测度指标,对比其结果可得出推荐的关键设计参数。通过多元方差分析比较两个关键参数的影响效应,发现增加车道宽度可以显著提高自行车网络服务水平。最后,给出了有利于改善自行车出行条件的规划设计策略。

Optimization of Bicycle Network Parameters for Improving Level of Services

With the goal of improving service levels, given the known origin destination(OD) distribution of bicycle trips in a specific area, an optimization method for urban bicycle network parameters mainly referring to bicycle lane spacing and bicycle lane width was proposed. Several test scenarios were built by different combinations of key design parameters, and Cube simulation model was used to test and analyze the effects of these scenarios. Level of service indicators such as total travel time, average speed and road saturation were obtained. The recommended key design parameters can be obtained by comparing the results. Multivariate analysis of variance was used to compare the effects of two key parameters. It is found that increasing lane width could significantly improve the level of service of bicycle network. Finally, the planning and design strategy for improving bicycle travel conditions is put forward.