常规公交路外换乘枢纽备选站址的选择方法研究

Methods for Selection of Alternative Location on off-street Transfer Hub of Routine Public Transit System

描述了现状的路侧常规公交换乘枢纽存在的主要问题,分析了常规公交路外换乘枢纽的概念及其在整个城市交通系统中的作用。选择并计算了公交枢纽衔接的公交线路条数、公交枢纽的发车频率、集散客流量、换乘客流量、换乘耗时等5项功能指标,对常规公交路外换成枢纽的集散换乘功能进行描述。通过确定灰类白化权函数、聚类指标权重,计算综合聚类系数对备选站址的归类判断,从而实现对常规公交路外换乘枢纽备选站址的灰色聚类分级,达到对备选站址选择的目的。利用调查数据进行案例分析,验证选择方法的准确性。

The current main problems of roadside transfer hub of routine public transit system are described,and the concept and functions of off-street transfer hub are analyzed.Ttotally five indexes are chosen to quantify the distributed and transferred functions of these hubs,which include the bus line number,bus frequency,aggregate and disperse passenger flows,transfer passenger flows and transfer time.Firstly,the grey whitening weight function and clustering indexes weight are determined,Then,the alternative locations of off-street transfer hub are grey cluster graded.Thus,the integrated clustering coefficients are calculated to achieve the selection of alternative locations.At last,the case analysis is studied to verify the method.