|Table of Contents|

Calculation model of maximum travel distance on urban road(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2012年04期
Page:
75-82
Research Field:
交通运输规划与管理
Publishing date:

Info

Title:
Calculation model of maximum travel distance on urban road
Author(s):
LONG Xue-qin GUAN Hong-zhi QIN Huan-mei
Key Lab of Transportation Engineering of Beijing, Beijing University of Technology, Beijing 100124, China
Keywords:
traffic planning travel range travel distance route choice model traffic accident delay model traffic assignment
PACS:
U491.1
DOI:
-
Abstract:
In order to reflect the influence of traffic accident delay on route choice for traveler reasonably, traffic accident delay model under random state was put out. The uncertain factors of traffic accident such as randomness, duration and road capacity were introduced into traffic assignment model, and the route choice model was modified. The maximum preponderant travel range of each grade road was analyzed. According to the modified route choice model, successive traffic assignment method was adopted. The turnovers and travel distances of all grade roads were got, and the travel distances were compared with the travel distances while traffic accident delay was not considered. Analysis result shows that while traffic accident delay is considered, the maximum travel distances of brunch, secondary primary road, main road and expressway are 2.000, 2.946, 4.054 and 5.963 km respectively. While traffic accident delay is not considered, the maximum distances of those roads are 2.000, 3.000, 6.000 and 10.000 km respectively. Traffic accident delay is the significant factor for traveler route choice. While traffic accident delay is considered, the maximum travel distances of higher grade roads decrease. Compared with the conventional route choice models, the proposed model is better. 6 tabs, 3 figs, 23 refs.

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Last Update: 2012-08-30