00647264

Component

http://onlinepubs.trb.org...trr/1993/1421/1421-004.pdf

https://scholar.google.co...Saka&publication_year=1993

The subject of this paper is use of a microscopic simulation model to estimate the minimum thresholds that require the installation of traffic signals at intersections. A simulation modeling approach was used to evaluate the reasonableness of signal installation Warrants 1 and 2 documented in the "Manual on Uniform Traffic Control Devices" (MUTCD). The results obtained from the simulation experiment indicate that the MUTCD warrants are conservative for some situations and hence if rigidly applied can result in premature installation of traffic signals. It was deduced from the simulation experiment that the minimum thresholds that require the installation of traffic signals depend on the geometric configuration of the intersection, that is, four-leg versus T-intersections. For example, according to the results obtained from the simulation experiment, for the same traffic conditions, four-leg intersections will require lower thresholds than T-intersections. A reasonable minimum threshold was estimated for T-intersections. This threshold can be used to supplement the MUTCD warrants.

This paper appears in Transportation Research Record No. 1421, Traffic Control Devices, Visibility, and 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

01398730

English

p. 30-35

1993

Transportation Research Record

0309055741

Figures (6) ; References (2) ; Tables (2)

Estimating; Four leg intersections; Microscopic traffic flow; Simulation; T intersections; Warrants (Traffic control devices)

Manual on Uniform Traffic Control Devices

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB

May 2 1994 12:00AM

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