|Table of Contents|

Calculation of time-saving benefits of highway under network environment(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2013年01期
Page:
71-77
Research Field:
交通工程
Publishing date:

Info

Title:
Calculation of time-saving benefits of highway under network environment
Author(s):
WU Yan1;  WANG Jian-jun1;  XU Hua-hui1;  LIANG Zhi-lin2
1.School of Architecture, Chang'an University, Xi'an 710061, Shaanxi, China; 2.Tianjin Expressway Group Co Ltd, Tianjin 300384, China
Keywords:
traffic engineering;  road network;  travel time saving;  value of travel time saving
PACS:
U491
DOI:
-
Abstract:
To accurately assess the economic efficiency of road network operation, this paper selected the most influential factor, benefits of saving time, as measured object. On the base of the contrast between road network and single path time-efficiency calculation methods, this article obtained the calculation procedures of time saving benefits by node selection, path selection and the value of travel time saving. Finally, in order to verify its effectiveness, this paper took the road network in Zhangjiakou as an example. The results show that the method overcomes the drawbacks of previous studies only on the value of time saving on single path, which focus on the calculation model of the value of time saving in various sections for road network. Among them, the node selection model selects population, GDP, road passengers and cargo traffic as indicators for Computing Importance of Nodes can more fully and truly reflect each node's regional characteristic of the road network in Zhangjiakou. The route choice model considering travel behavior preferences satisfies travelers' personal wishes from a rational perspective, which is more in line with the actual situation and simpler and more practical. Using link performance function to calculate the time value based on calculation of node importance and optimal path selection gives full consideration of benefits interaction the sections and sections, which is more reasonable. In a word, the calculation method of the value of time saving for the road network is more in line with the operational status of the completed highway network,and the method can provide theoretical support for the evaluation of the running road network. 2 tabs, 2 figs, 13 refs.

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Last Update: 2013-02-20