Field Evaluation of Innovative Active Warning Devices for Use at Railroad-highway Grade Crossings PDF Download
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Author: Kenneth W. Heathington
Publisher:
ISBN:
Category : Highway-railroad grade crossings
Languages : en
Pages : 288
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Book Description
Research was conducted to identify and evaluate innovative active warning devices with potential for improving safety at railroad-highway grade crossings. Candidate devices were identified and/or developed, and the most promising devices were evaluated in a detailed laboratory study. Three of the devices were chosen for field evaluation: (1) four-quadrant gates with skirts and flashing light signals; (2) four-quadrant flashing light signals with overhead strobes; and (3) highway traffic signals with white bar strobes in all red lenses. The report documents the methodology and results of the field evaluations, presents a summary of the research leading up to the field evaluations, and presents the results of benefit-cost analyses for the innovative devices and guidelines for their implementation.
Author: Kenneth W. Heathington
Publisher:
ISBN:
Category : Highway-railroad grade crossings
Languages : en
Pages : 288
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Book Description
Research was conducted to identify and evaluate innovative active warning devices with potential for improving safety at railroad-highway grade crossings. Candidate devices were identified and/or developed, and the most promising devices were evaluated in a detailed laboratory study. Three of the devices were chosen for field evaluation: (1) four-quadrant gates with skirts and flashing light signals; (2) four-quadrant flashing light signals with overhead strobes; and (3) highway traffic signals with white bar strobes in all red lenses. The report documents the methodology and results of the field evaluations, presents a summary of the research leading up to the field evaluations, and presents the results of benefit-cost analyses for the innovative devices and guidelines for their implementation.
Author: United States. Dept. of Transportation. Grade Crossing Safety Task Force
Publisher:
ISBN:
Category : Highway-railroad grade crossings
Languages : en
Pages : 148
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Book Description
Author: Hans W. Korve
Publisher: Transportation Research Board
ISBN: 9780309068246
Category : Technology & Engineering
Languages : en
Pages : 100
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Book Description
Presents a review of the current practices associated with the operation of traffic signals at intersections located near highway-rail grade crossings.
Author: S. J. Richards (ed)
Publisher:
ISBN:
Category :
Languages : en
Pages : 242
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Book Description
Author: Daniel B. Fambro
Publisher:
ISBN:
Category : Automobile drivers
Languages : en
Pages : 246
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Book Description
Author: Neil Lerner
Publisher:
ISBN:
Category :
Languages : en
Pages : 200
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Book Description
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 60
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 136
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Author:
Publisher:
ISBN:
Category : School buses
Languages : en
Pages : 112
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Book Description
The primary objectives of this research project were: (1) to develop an active advance warning device (AAWD) comprised of an actuated flashing beacon supplement to a conventional SCHOOL BUS STOP AHEAD sign (S3-1) and (2) to evaluate its effect on driver performance and safety through school bus loading and unloading zones. Secondary objectives were to summarize system components and costs, develop an activation strategy, review the liability risk, review national experience related to safety, and provide guidance regarding specifications and use in Texas. With respect to safety, 37 of 46 studies reported a positive effect resulting from AAWDs. Findings from field studies conducted in Texas also suggest favorable results with confirmed reductions in vehicle approach speeds when the flashing beacon was activated. Costs for the final AAWD are estimated to be 2,000 dollars for the S3-1 sign and flashing beacons and 2,600 dollars for the flashing beacon activation system, not including sign installation or ongoing maintenance and operations costs. A review of published literature and historic case law suggests minimal additional liability risk above what is already experienced by transportation departments. Unique areas of risk relate to "jurisdictional responsibility" for establishing, operating, and maintaining school bus loading and unloading zones and the hazard expectation tied to the flashing beacon activation (i.e., motorists may not exercise the same degree of caution when the bus is not present and the beacons are not flashing despite children being present at the bus stop). Given the favorable safety impacts, the low system cost, and the minimal additional liability risk incurred, the AA WD is recommended for further implementation.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 838
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Book Description
