Revisiting Jiang’s dynamic continuum model for urban cities
Revisiting Jiang’s dynamic continuum model for urban cities
复制标题
重温蒋的城市动态连续体模型
DOI:
10.1016/j.trb.2013.07.001
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发表时间:
2013-10
期刊:
影响因子:
--
通讯作者:
Jie Du, S.C. Wong, Chiwang Shu, Tao Xiong, Mengpi
中科院分区:
文献类型:
--
作者:
Jie Du, S.C. Wong, Chiwang Shu, Tao Xiong, Mengpi
Jiang et al. (Jiang, Y.Q., Wong, S.C., Ho, H.W., Zhang, P., Liu, R.X., Sumalee, A., 2011. A dynamic traffic assignment model for a continuum transportation system. Transportation Research Part B 45 (2), 343–363) proposed a predictive continuum dynamic user-optimaDUO-l to investigate the dynamic characteristics of traffic flow and the corresponding route-choice behavior of travelers. Their modeled region is a dense urban city that is arbitrary in shape and has a single central business district (CBD). However, we argue that the model is not well posed due to an inconsistency in the route-choice strategy under certain conditions. To overcome this inconsistency, we revisit the PDUO-C problem, and construct an improved path-choice strategy. The improved model consists of a conservation law to govern the density, in which the flow direction is determined by the improved path-choice strategy, and a Hamilton–Jacobi equation to compute the total travel cost. The simultaneous satisfaction of both equations can be treated as a fixed-point problem. A self-adaptive method of successive averages (MSA) is proposed to solve this fixed-point problem. This method can automatically determine the optimal MSA step size using the least squares approach. Numerical examples are used to demonstrate the effectiveness of the model and the solution algorithm.
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DOI:
10.1016/0041-1647(76)90042-3
发表时间:
1976-04
期刊:
Transportation Research
影响因子:
--
作者:
H. Williams;J. Salas
通讯作者:
H. Williams;J. Salas
DOI:
10.1016/s0191-2615(01)00011-x
发表时间:
2002-06-01
影响因子:
6.8
作者:
Lo, HK;Szeto, WY
通讯作者:
Szeto, WY
影响因子:
6.8
作者:
M. Kuwahara;T. Akamatsu
通讯作者:
M. Kuwahara;T. Akamatsu
DOI:
10.1080/18128602.2011.621652
发表时间:
2013
期刊:
Transportmetrica A: Transport Science
影响因子:
--
作者:
["H. Ho
通讯作者:
["H. Ho
影响因子:
--
作者:
A. Chow
通讯作者:
A. Chow