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Title:

ADVANCED INTERSECTION CONTROLLER RESPONSE TO RAILROAD PREEMPTION
Cover of ADVANCED INTERSECTION CONTROLLER RESPONSE TO RAILROAD PREEMPTION

Accession Number:

00822618

Record Type:

Monograph

Availability:

National Technical Information Service

5301 Shawnee Road
Alexandria, VA 22312 United States

Abstract:

This High-Speed Rail (HSR) Innovations Deserving Exploratory Analysis (IDEA) project was to develop an improved algorithm for the integration and sequencing of highway intersection signal controllers adjacent to railroad grade crossings with preemptive train detection signals. The objective was to safely and efficiently clear crossings of highway and pedestrian traffic prior to train arrival. The controller logic was developed and tested under various simulated scenarios. The preemption algorithm was developed, tested and evaluated, using simulation software that models various case studies representing a range of crossing scenarios. Field testing at a signalized intersection adjacent to a grade crossing and a final report have been completed. Field test results revealed several problems with real-world implementation. Principal among these was the substantial variability between predicted and actual arrival time of trains at crossings. This caused problems because the Doppler radar system made only a single-point estimate of train arrival speed that did not account for subsequent acceleration or deceleration. Further development of this concept would require the capability for continuous updates of train speed and arrival predictions.

Supplemental Notes:

This HSR-IDEA project was conducted by the Texas Transportation Institute, Austin, Texas. 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

Report/Paper Numbers:

HSR-IDEA Project 16,
Final Report

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Venglar, S

Pagination:

35 p.

Publication Date:

2001-12

Serial:

High-Speed Rail IDEA Program Project Final Report

Publisher: Transportation Research Board

Period Covered:

9902-0002

Features:

Appendices (4) ; Figures; Photos; References (15) ; Tables (5)

Subject Areas:

Highways; Operations and Traffic Management; Railroads

Files:

TRIS, TRB

Created Date:

Jan 4 2002 12:00AM