Catalog Record: A preliminary laboratory investigation of passive railroad crossing signs. Final report | HathiTrust Digital Library

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A preliminary laboratory investigation of passive railroad crossing signs. Final report.

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Main Author: Bridwell, Nancy.
Related Names: Alicandri, Elizabeth. , Fischer, D. , Kloeppel, E.
Language(s): English
Published: 1993.
Subjects: Visibility.
Railroad grade crossings.
Laboratory tests.
Grade crossing protection systems.
Contrast.
Railway Crossings.
Optical Contrast/ Conspicuity.
Laboratory Experiments.
Crossing Signals.
Physical Description: 26 p. : 9 ref. figs. illus. tables.
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