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Title:

THE EFFECTS OF SMALL ROUNDABOUTS ON EMISSIONS AND FUEL CONSUMPTION: A CASE STUDY

Accession Number:

00821087

Record Type:

Component

Availability:

Elsevier Science, Incorporated

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Tarrytown, NY 10591-5153 USA

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Order URL: http://worldcat.org/issn/13619209

Abstract:

Intersections on arterials were rebuilt as small roundabouts in a Swedish town with the goal of improving traffic safety. One of the intersections was originally signalized while others were yield-regulated. To measure CO and NOx emissions and fuel consumption before and after the roundabouts were installed, random cars were selected and followed with an instrument-equipped vehicle that tried to imitate the followed car's driving pattern as closely as possible. Results of the study found that CO emissions decreased by 29%, NOx emissions decreased by 21% and fuel consumption by 28% at the roundabout that replaced the signalized junction. At roundabouts replacing yield regulated junctions, CO emissions increased by 4%, NOx emissions by 6% and fuel consumption by 3%. These results indicated that the larger reductions in emissions and fuel consumption at one former signalized intersection can compensate for the increase produced by several yield-regulated junctions rebuilt as roundabouts.

Language:

English

Corporate Authors:

Elsevier

The Boulevard, Langford Lane
Kidlington, Oxford OX5 1GB United Kingdom

Authors:

VARHELYI, A

Pagination:

p. 65-71

Publication Date:

2002-1

Serial:

Transportation Research Part D: Transport and Environment

Volume: 7
Issue Number: 1
Publisher: Elsevier
ISSN: 1361-9209
Serial URL: http://www.sciencedirect.com/science/journal/13619209

Features:

Figures (1) ; References; Tables (3)

Geographic Terms:

Subject Areas:

Energy; Highways

Files:

TRIS, ATRI

Created Date:

Nov 27 2001 12:00AM

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