00495450

Component

http://onlinepubs.trb.org...trr/1989/1239/1239-004.pdf

https://scholar.google.co...k+II&publication_year=1989

A method for determining when traffic flow should be grade separated would be an invaluable tool for the traffic engineer/planner. The results of this study facilitate choosing proposed grade separation improvements on the basis of an evaluation of the reduced delay benefits to the cost of a grade separation. This methodology can assist decision-makers in determining when grade separations are appropriate. The analysis is centered on the Federal Highway Administration's TRANSYT 7F model. An economic analysis that presents the benefit/cost methodology for ranking a grade separation project is included.

This paper appears in Transportation Research Record No. 1239, Geometric Design and Operational Effects. 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

01414248

p. 23-29

1989

Transportation Research Record

0309049660

Figures (8) ; References (4) ; Tables (2)

Benefit cost analysis; Decision making; Diamond interchanges; Economic analysis; Grade separations; Intersections; Traffic delays; Traffic simulation

Design; Economics; Highways; Operations and Traffic Management; I20: Design and Planning of Transport Infrastructure; I73: Traffic Control

TRIS, TRB, ATRI

Jul 31 1990 12:00AM

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• HIGHWAY VERTICAL ALIGNMENT ANALYSIS BY DYNAMIC PROGRAMMING
• INTERACTIVE INTERSECTION DESIGN USING AN EXPERT SYSTEMS APPROACH
• SAFETY EFFECTS OF LEFT-TURN LANES ON URBAN FOUR-LANE ROADWAYS