Considering Safe Distance between Moving Vehicles

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URI http://shark.lib.kagawa-u.ac.jp/kuir/metadata/438
Title
Considering Safe Distance between Moving Vehicles
File
Description

The purpose of this study was to measure time headway between moving vehicles. We observed 2,004 vehicles running on suburban and city roads at night and daytime. We analyzed time headway from the viewpoints of location, time, lane, weather, 'fleet', and type of vehicles. The safe distance at 60 km/h, recommended by driving schools in Japan today, was tentatively equivalent to a time interval of 2.7 seconds. From the overall standpoint, nearly 8027774225220f 2,004 vehicles maintained an unsafe and risky time headway. When adopting the safe criterion in the UK, 9227774232060f vehicles in Japan kept unsafe time gaps under rainy condition. We proposed ""how to maintain safe distance between moving vehicles"" using time headway in concrete terms.

Author
著者 Ichikawa Kiyofumi
著者(ヨミ) イチカワ キヨフミ
著者(別表記) 市河 淳章
Publication Title
香川大学教育学部研究報告第Ⅱ部
Volume
53
Issue
2
Start Page
123
End Page
138
Publisher
香川大学教育学部
Published Date
20030900
ISSN
0389-3057
NCID
AN00038226
Resource Type
Departmental Bulletin Paper
Language
eng
Text Version
publisher
Set
香川大学
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