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Motorists' requirements for active grade crossing warning devices : final report, October 1977 : prepared for Federal Highway Administration, Offices of Research and Development

Author: R J Ruden; MBAssociates.; United States. Federal Highway Administration. Offices of Research and Development.
Publisher: Washington : Federal Highway Administration, Offices of Research and Development ; Springfield, Va. : Available through the National Technical Information Service, [1979]
Series: United States.; Federal Highway Administration.; Report
Edition/Format:   Print book : National government publication : EnglishView all editions and formats
Summary:
This report describes a two-year study of some of the basic problems involved in improving the design of active warning devices intended to make motorists more aware of grade crossing hazards. Emphasis was placed upon improvement of the attention-getting aspect (conspicuity) of active crossing warning devices which was presumed to positively correlate with improvements in grade crossing safety. An indoor laboratory  Read more...
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Additional Physical Format: Online version:
Motorists' requirements for active grade crossing warning devices.
Washington : Federal Highway Administration, Offices of Research and Development ; Springfield, Va. : Available through the National Technical Information Service, [1979]
(OCoLC)954287553
Material Type: Government publication, National government publication
Document Type: Book
All Authors / Contributors: R J Ruden; MBAssociates.; United States. Federal Highway Administration. Offices of Research and Development.
OCLC Number: 5047232
Notes: "Report no. FHWA-RD-77-167."
Contract no. DOT-FH-11-8846.
Description: xii, 258 pages : illustrations ; 28 cm
Contents: Introduction --
Conclusions and recommendations --
Phase I lierature synthesis --
Laboratory test phase --
Field test phase --
Guidelines for future efforts --
Appendices.
Series Title: United States.; Federal Highway Administration.; Report
Responsibility: R.J. Ruden [and others], MBAssociates.

Abstract:

This report describes a two-year study of some of the basic problems involved in improving the design of active warning devices intended to make motorists more aware of grade crossing hazards. Emphasis was placed upon improvement of the attention-getting aspect (conspicuity) of active crossing warning devices which was presumed to positively correlate with improvements in grade crossing safety. An indoor laboratory test was conducted in the FAA Low Visibility Research Facility located at the University of California. In excess of 150 subjects gave over 20,000 responses to flashing light displays. Results were analyzed to determine effects of color, flash rate, brightness, size and placement under daylight, darkness and daytime fog conditions. The laboratory tests resulted in development of two improved devices which were field tested on actual grade crossings. The first device consisted of an array of three eight-inch white (clear) strobe lights added to a standard flashing warning system at a high accident rate urban crossing in Richmond, CA. The second was a gate arm add-on device consisting of three small strobes, red, white (clear) and blue in color installed at a rural highway grade crossing with high speed truck and automobile traffic.

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