Presentation	2010/10/5 Dependence of Deceleration Timing on Lead Vehicle Speed Makoto ITOH,
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Abstract(in English)	It has been pointed out that "RF" (Risk Feeling) index would be useful to evaluate driver's feeling on the rear-end collision risk at least under certain traffic conditions. In order to use the index appropriately, it is necessary to understand to what extent the index reflects the risk of a rear-end collision. This paper investigates driver brake timing for avoiding a rear-end collision by analyzing real world driving data on general roads. The driving data contains wide varieties of traffic conditions. The results show that it is effective when the velocity of the preceding vehicle is not less than 30km/h. However, there are situations in which non-emergency braking is done beyond the threshold value.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	Rear-end collision / Risk / Driver behavior / Driver Assistance Systems
Paper #	SSS2010-12
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Conference Information
Committee	SSS
Conference Date	2010/10/5(1days)
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Paper Information
Registration To	Safety (SSS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Dependence of Deceleration Timing on Lead Vehicle Speed
Sub Title (in English)
Keyword(1)	Rear-end collision
Keyword(2)	Risk
Keyword(3)	Driver behavior
Keyword(4)	Driver Assistance Systems
1st Author's Name	Makoto ITOH
1st Author's Affiliation	Department of Risk Engineering, University of Tsukuba()
Date	2010/10/5
Paper #	SSS2010-12
Volume (vol)	vol.110
Number (no)	242
Page	pp.pp.-
#Pages	4
Date of Issue