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Title:

ROLE OF ADVERSE WEATHER IN KEY CRASH TYPES ON LIMITED-ACCESS ROADWAYS: IMPLICATIONS FOR ADVANCED WEATHER SYSTEMS

Accession Number:

00756095

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

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Order URL: http://worldcat.org/isbn/030906466X

Abstract:

Adverse weather can reduce visibility and road surface friction and thus increase crash frequency and injury severity. However, drivers may compensate for higher crash risk by reducing speeds, maintaining safe spacing, and driving more carefully. The impacts of adverse weather and its interactions with driver and roadway characteristics on the occurrence and injury severity of selected crash types are analyzed. Single-vehicle, two-vehicle sideswipe, and two-vehicle rear-end collisions on limited-access roadways are considered. To analyze differential impacts of adverse weather on crash type, binary probit models are estimated for single-vehicle versus the two types of two-vehicle crashes, and for rear-ends versus sideswipes. To analyze injury severity, ordered probit models are estimated. The 1990-1995 Highway Safety Information System (HSIS) database for North Carolina was used for analysis. The results indicate that, for the selected crash types, drivers appear to compensate for increased injury risks in that in adverse weather crashes are more frequent but injuries are less severe. Some implications for advanced weather systems are discussed.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1621, Intelligent Transportation Systems: Advanced Traveler Information Systems and Safety Research.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Khattak, A J
Kantor, P
Council, F M

Pagination:

p. 10-19

Publication Date:

1998

Serial:

Transportation Research Record

Issue Number: 1621
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

030906466X

Features:

Figures (1) ; References (16) ; Tables (5)

Uncontrolled Terms:

Reduced visibility; Wet pavements

Old TRIS Terms:

Subject Areas:

Highways; Pavements; Planning and Forecasting; Safety and Human Factors; I72: Traffic and Transport Planning; I80: Accident Studies

Files:

TRIS, TRB, ATRI

Created Date:

Nov 4 1998 12:00AM

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