|Table of Contents|

Setting location of speed limit signs along highway

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

Issue:
2011年01期
Page:
74-78
Research Field:
Publishing date:
2011-02-28

Info

Title:
Setting location of speed limit signs along highway
Author(s):
LU Jian1;  JIANG Jun1;  YE Hai-fei2
1. Jiangsu Province Key Laboratory of Transportation Planning and Management, Southeast University, Nanjing 210096, Jiangsu, China;
2. Shenzhen Comprehensive Transportation Designing Academy, Shenzhen 518033,Guangdong, China
Keywords:
traffic engineering;  speed limit sign;  setting location;  driver characteristic
PACS:
U491.52
DOI:
-
Abstract:
The setting location of speed limit signs is an important factor that affects their valid-ity. This paper studied the setting location of speed limit signs based on driver’s visual response, cognitive characteristics. The calculation method of the main parameters during the recognition process was analyzed, a calculation model to determine the minimum pre-distance was established based on the minimum time that drivers required to recognize the speed limit signs and complete deceleration operation, then a maximum pre-distance calculation model was established based on the principle that drivers discover the speed limit signs setting at the entrance of speed limited roads just when the short-term memory about the speed limit information nearly disappeared, to determined the best setting location of speed limit signs. An example was given and verified the practicality of this method. It is found that this method can help to determine the best setting location of speed limit signs, avoid the arbitrary setting based on experience, and improve the validity of roadside speed limit signs. 2 tabs, 4 figs, 12 refs.

References:

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Memo

Memo:
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Last Update: 2011-02-28