共享单车发展下的轨道交通廊道影响范围研究

基于共享单车在各大城市普及程度的提高,共享单车换乘轨道交通的出行方式越来越普遍。本文建立以广义出行成本表达可达性的轨道交通廊道影响范围测算模型,计算轨道交通站点的合理影响范围,比较骑行和步行换乘轨道交通时各站点的影响范围。以成都市为例,各环线内骑共享单车的影响范围比步行的影响范围平均增加了675.2～4590.06 m;范围扩大了2.36～2.64倍。基于泰森多边形原理,解决各站点间合理影响范围的重合问题,并确定站点潜在影响范围的界限。该研究成果确定了一个更为精准地划分轨道交通廊道影响范围的方法,为轨道交通廊道影响范围的研究提供了新的理论方法。

Research on the Influence Range of Rail Transit Corridor under the Development of Shared Bicycles

Based on the increasing popularity of shared bicycles in major cities, the mode of using shared bicycles transfer to subway is becoming more and more common. A calculation model for influence range of rail transit corridors are established in this paper, which expresses accessibility by generalized trip cost. The reasonable influence range of each rail transit station is obtained by this model, and the influence range of walking and shared bicycle transfer subway is compared. Taking Chengdu urban rail transit network as an example, by dividing the influence range of subway stations in each ring by urban ring roads, it is found that the influence range of shared bicycle increases by 675.2 ~4590.06m on average compared with that of walking, and the range expands by 2.36~2.64 times.Based on the principle of Thiessen polygon, the overlapping problem of reasonable influence ranges among different stations are solved, and the boundaries of potential influence ranges of stations are determined. The research results determine a more precise method to divide the of rail transit corridors,which provides a new theoretical method for the study of the influence range of rail transit corridors.