Details:

Creators:
Weissmann, Angela Jannini ; Weissmann, Jose ; Kunisetty, Jaya Lakshmi ; Warner, Jeffery ; Park, Eun Sug ; ... More +
Weissmann, Angela Jannini ; Weissmann, Jose ; Kunisetty, Jaya Lakshmi ; Warner, Jeffery ; Park, Eun Sug ; Sunkari, Srinivasa ; Protopapas, Annie ; Venglar, Steven Less -
Corporate Creators:
University of Texas at San Antonio. Dept. of Civil and Environmental Engineering ; Texas A&M Transportation Institute
University of Texas at San Antonio. Dept. of Civil and Environmental Engineering ; Texas A&M Transportation Institute Less -
Corporate Contributors:
United States. Federal Highway Administration ; Texas. Dept. of Transportation
United States. Federal Highway Administration ; Texas. Dept. of Transportation Less -
Subject/TRT Terms:
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Highway-railroad Grade Crossings--Safety Measures
Traffic Signs And Signals
Accident Risk Forecasting
Financing
Grade Crossing Protection Systems
Railroad Grade Crossings
Strategic Planning
Warning Devices
Warrants (Traffic Control Devices)

Publication/ Report Number:
FHWA/TX-12/0-6642-1
Resource Type:
Tech Report
Geographical Coverage:
Texas
Corporate Publisher:
Texas A&M Transportation Institute
NTL Classification:
NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices ; NTL-RAIL TRANSPORTATION-Railroad Highway Grade Crossings ; NTL-RAIL TRANSPORTATION-Rail Safety ; NTL-SAFETY AND SECURITY-Rail Safety ;
Abstract:
This two-year research project developed a prioritization system for highway-rail at-grade crossings that addressed the following major concerns: (1) warrants to identify low-volume, passive crossings with risk factors; (2) a broader priority index that considers more variables than the original index; (3) warranting thresholds that remain valid with changes in data; and (4) a prioritization methodology capable of properly prioritizing the warranted passive crossings over high-volumes active crossings. The prioritization system combines a revised priority index based on a newly developed crash prediction equation, warrants for active warning devices at passive crossings, and a passive crossing prioritization index based on Utility Theory principles. The warranting threshold are defined in terms of cumulative percentiles rather than fixed numbers to ensure reliability as data changes. The warrants and prioritization indices were integrated into a systematic prioritization methodology capable of a generating priority list that assigns top priorities to crossings with risk factors in spite of low volumes. The deliverables will facilitate highway-rail crossing management in Texas and ensure proper consideration of low-volume crossings when applying funding mechanisms such as Section 130 funds.
Format:
PDF
Funding:
Project 0-6642
Collection(s):
US Transportation Collection
Main Document Checksum:
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urn:sha256:fc82f2697a3ba35693dc63e3d0ca9a9ef52f40bda83b12fe9daf6b05e74ac66d
File Type:

Supporting Files

• No Additional Files

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