01479262

Component

Measuring and understanding service reliability from the users' point of view is a major issue in transport planning. Indicators describing passengers' transit experiences have been developed but they cannot directly be used in a frequency-based transit assignment software, through generalized cost, because they are always based on timetables. As well, these indicators make little case of onboard congestion. The objective of this paper is to introduce a stochastic model describing passenger travel conditions along a transit line, from the users' perspective and in a frequency-based framework. Inter-arrival times are treated as random variables. The model is based on a simple assumption about successive headways that describe the way irregularity is propagated along the line. It yields analytical formulas for the distribution of passenger loads on all sections. An efficient way of computing congestion costs for passenger is also described. Finally, the model is applied to a portion of a suburban rail line from the Paris region and orders of magnitude of the difference between what operators measures and what passengers experience are derived.

This paper was sponsored by TRB committee AP015 Transit Capacity and Quality of Service.

01470560

13-3676

English

15p

2013

Transportation Research Board 92nd Annual Meeting

Digital/other

Figures; References; Tables

Headways; Public transit; Stochastic processes; Timetables; Traffic assignment; Transit riders; Transportation planning; Travel costs

Paris (France)

Planning and Forecasting; Public Transportation; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2013 Paper #13-3676

TRIS, TRB, ATRI

Feb 5 2013 12:43PM