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Title:

EFFECT OF ADVERSE WEATHER CONDITIONS ON SPEED-FLOW-OCCUPANCY RELATIONSHIPS

Accession Number:

00677662

Record Type:

Component

Availability:

Transportation Research Board

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Washington, DC 20001 USA
Order URL: http://www.trb.org/Publications/Pages/262.aspx

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Order URL: http://worldcat.org/isbn/0309061008

Abstract:

The effect of adverse weather conditions on the flow-occupancy and speed-flow relationships is studied. The data used in the analysis were obtained from the Queen Elizabeth Way Mississauga freeway traffic management system. Regression analyses were performed to select proper models representing the flow-occupancy and speed-flow relationship for uncongested operation. Then dummy variable multiple regression analysis techniques were used to test for significant differences in traffic operations between different weather conditions. It is concluded that adverse weather conditions reduce the slope of flow-occupancy function and cause a downward shift in the speed-flow function. Adverse weather conditions also reduce the maximum observed flow rates.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1457, Part 2, Traffic Flow and Capacity.

Monograph Accession #:

01396804

Language:

English

Authors:

Ibrahim, Amal T
Hall, Fred L

Pagination:

p. 184-191

Publication Date:

1994

Serial:

Transportation Research Record

Issue Number: 1457
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309061008

Features:

Figures (3) ; References (16) ; Tables (5)

Uncontrolled Terms:

Old TRIS Terms:

Subject Areas:

Data and Information Technology; Highways; Operations and Traffic Management; I71: Traffic Theory

Files:

TRIS, TRB

Last Modified:

Dec 11 2013 2:33PM

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