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Title:

Cycle-Length Performance Measures: Revisiting and Extending Fundamentals

Accession Number:

01127137

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/9780309142601

Abstract:

Webster’s single-ring formulation for cycle length and the "Highway Capacity Manual" (HCM) intersection saturation metric are revisited, and the model for dual-ring operation is extended to provide a tool for evaluating the effectiveness and efficiency of a prescribed cycle length. The calculations from Webster’s model and the HCM provide a framework for identifying periods of time when cycle length could be substantially shortened, periods of the day when an increase in cycle length would provide some modest improvements, and periods of the day when cycle length is adequate and capacity problems should be addressed by adjusting splits. The methodology is demonstrated for incorporating the number of split failures, overall intersection saturation, and Webster’s optimal cycle length to evaluate the quality of split operation and the effectiveness of cycle length at a signalized intersection.

Monograph Title:

Traffic Signal Systems 2009

Monograph Accession #:

01147490

Report Numbers:

09-0061

Language:

English

Authors:

Day, Christopher M
Bullock, Darcy M
Sturdevant, James R

Pagination:

pp 48-57

Publication Date:

2009

Serial:

Transportation Research Record: Journal of the Transportation Research Board

Issue Number: 2128
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

9780309142601

Media Type:

Print

Features:

Figures (8) ; References (12) ; Tables (6)

Identifier Terms:

Uncontrolled Terms:

Subject Areas:

Highways; Operations and Traffic Management; I73: Traffic Control

Files:

TRIS, TRB, ATRI

Created Date:

Jan 30 2009 4:19PM

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