基于时空脉动分析模型的城市公交规划方案研究

Optimization of Bus Services with a Spatiotemporal Transport Pulsation Model

随着城镇化进程加快和人民生活水平提高,城市公共交通资源的合理配置已成为城市发展水平的重要评价标准之一。为了科学地规划城市公交服务方案,本文从时空数据变化分析角度,建立了基于时间和空间维度组合研究的城市公交时空脉动分析模型和公交需求计算模型,设计了时空维度下的公交服务水平评价指标,包括基于时间维度的公交运送能力指标和基于空间维度的公交可达性指标。立足于中新天津生态城时空数据公共平台,利用城市公交时空脉动分析模型与公交需求计算模型协同优化区域内公交发车频率和行车路线,研究模型结果可以将整体公交服务水平总和提高17.58%。

With the rapid urbanization,the transportation system and the improvement of human life quality,the rational allocation of urban public transportation infrastructure has been one of the import criteria for evaluation on the levels of urban development.In order to formulate a rational scheme for urban bus system,we built a spatiotemporal pulsation model and a bus traffic demand model.The evaluation indicators for bus service levels were designed,which concerns both bus transit capacity at the temproal dimension and spatial accessibility of bus at the spatial dimension.The proposed method had been applied to Tianjin to optimize the intra-regional bus services including bus depature frequency and bus routes.Results indicated that our model could increase the overall quality of the bus system by 17.58%.