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[讨论] A dynamic schedule-based model for congested transit networks(英文)

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发表于 2007-9-19 14:59:46 | 显示全部楼层 |阅读模式
A dynamic schedule-based model for congested
transit networks
M.H. Poon, S.C. Wong *, C.O. Tong
Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong,
People’s Republicof China
Received 22 January 2001; received in revised form 5 September 2002; accepted 15 October 2002

Abstract
In this paper we propose a model and algorithm for solving the equilibrium assignment problem in a
congested, dynamic and schedule-based transit network. We assume that the time varying origin–destination
trip demand is given. All travelers have full predictive information (that have been gained through
past experience) about present and future network conditions and select paths that minimize a generalized
cost function that encompasses four components: (a) in-vehicle time; (b) waiting time; (c) walking time; and
(d) a line change penalty. All transit vehicles have a fixed capacity and operate precisely as specified in preset
timetables. Passengers queue at platforms according to the single channel first-in-first-out discipline. By
using time-increment simulation, the passenger demand is loaded onto the network and the available capacity
of each vehicle is updated dynamically. After each simulation run, the passenger arrival and departure
profiles at all stations are recorded and these are used to predict dynamic queuing delays. From
such delays, minimum paths are updated and used for the next simulation run. The user equilibrium assignment
problem is solved iteratively by the method of successive averages.
 2003 Elsevier Science Ltd. All rights reserved.

Keywords: Transit network; Schedule-based; Dynamic assignment; Capacity restraint

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发表于 2008-2-11 20:11:02 | 显示全部楼层
文章有点老了。不过还是看下。


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