Dynamic Accessibility of Urban Mass Transit Network Based on Train Diagram

Abstract:

Accessibility coordination scheme of urban rail transit network especially for the first and last trains plays a significant role in promoting the intelligent management of UMT system.The dynamic accessibility between ODs mainly depends on the physical network as well as train operational network,which effected by determinate control of train diagram and uncertainty of transfer time.The paper sets up a coordination model of first and last trains’ dynamic accessibility of UMT network,which consists of absolute accessibility,conditional accessibility and inaccessibility levels in terms of elastic transfer time,then gives the calculation procedure.It indicates the results of accessible time domain of first and last trains can be used for passengers’ trip guide.

Key words:train diagram; urban mass transit; the first and last trains; dynamic accessibility