00460092

Component

http://onlinepubs.trb.org...trr/1986/1057/1057-001.pdf

https://scholar.google.co...+Liu&publication_year=1986

A discussion is presented of previous attempts to combine bandwidths and delay and stop considerations as criteria for computing signal-timing plans for arterial signal systems. In particular, deficiencies in these previous attempts are pointed out. A new approach that involves constraining the TRANSYT-7F model to preserve the two-way band computed by a bandwidth program is described. This new approach was tested on 10 widely varying arterial data sets by using the MAXBAND program to develop the green bands, and the NETSIM model to evaluate the effectiveness of the resultant signal-timing plans with a weighted combination of delay and stops as the measure of performance. It is shown that no statistically significant improvement in arterial performance is obtained by adjusting offsets only, even in the case of short block spacing. However, if both offsets and green times are adjusted, statistically significant improvements in arterial performance are obtained.

Publication of this paper sponsored by Committee on Traffic Signal Systems. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00495950

Chang, Edmond Chin-Ping

pp 1-9

1986

Transportation Research Record

0309040515

Print

Figures (5) ; References (13) ; Tables (5)

Adjustment factors; Bandwidth; Computer programs; Constraints; Equipment maintenance; Green interval (Traffic signal cycle); Measures of effectiveness; Offsets (Traffic signal timing); Optimization; Traffic signal timing

Effectiveness; Equipment adjustment

Highways; Maintenance and Preservation; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB

Nov 30 1986 12:00AM

• A TRAFFIC CONTROL SYSTEM FOR THE CITY OF KUWAIT
• CASE STUDY EVALUATION OF THE SAFETY AND OPERATIONAL BENEFITS OF TRAFFIC SIGNAL COORDINATION
• CONGESTION-BASED CONTROL SCHEME FOR CLOSELY SPACED, HIGH TRAFFIC DENSITY NETWORKS
• CONTROL OF CONGESTION AT HIGHLY CONGESTED JUNCTIONS
• DEVELOPING INTERCONNECTION GUIDELINES FOR ISOLATED TRAFFIC SIGNALS
• DIRECTIONAL WEIGHTING FOR MAXIMAL BANDWIDTH ARTERIAL SIGNAL OPTIMIZATION PROGRAMS
• INVESTIGATION OF OPTIMAL TIME TO CHANGE ARTERIAL TRAFFIC SIGNAL-TIMING PLAN (DISCUSSION AND CLOSURE)
• POTENTIAL PERFORMANCE CHARACTERISTICS OF ADAPTIVE CONTROL AT INDIVIDUAL INTERSECTIONS (ABRIDGMENT)