基于互联网地图数据的广州市轨道站点接驳效率评价

Evaluation of Feeder Efficiency of Guangzhou Rail Stations Based on Internet Map Data

通过调用互联网地图提供的路径规划服务,计算广州市轨道站点周边各网格区域与站点间的步行、公交、骑行3种接驳方式的出行时间。结合站点周边人口就业分布数据,基于时空阻隔模型计算各站点接驳可达性,并考虑公交相对于步行方式的竞争力定义公交竞争系数、最小公交接驳优势距离两个指标,评价轨道站点的接驳效率和接驳公交的服务水平,识别轨网中接驳服务薄弱站点。计算结果表明,中心城区站点整体接驳可达性较高,部分外围站点公交接驳水平较低,相对于步行的竞争力较差。为此,应重点优化这些外围站点的接驳公交服务,提升外围客流轨道出行效率。

By calling the the path planning API provided by the Internet map,the travel time of the three feeder modes of walking,bus and cycling between the Guangzhou rail station and overlay grid areas are calculated.By use of the population employment distribution data around stations,the feeder accessibility of each station is calculated based on the Space-time barrier model.Considering the competitiveness of the feeder bus relative to walking,the two indicators of feeder bus competition coefficient and the minimum advantage distance of feeder bus are defined,to evaluate the feeder efficiency of rail stations and the service level of the feeder bus,and identify the weak feeder service stations in the rail network.The calculation results show that the overall feeder accessibility of stations in the central urban area is high,and the level of feeder bus services of some suburb stations is low,which is less competitive than walking.Therefore,more optimization efforts should be emphasized on the feeder bus service of these peripheral stations to improve the efficiency of rail travel of suburb passengers.