Railroad Grade Crossing Passive Signing Study.
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1978-08-01
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Content Notes:Introduction, Sign configurations, Site characteristics and test conditions, Experiment variables and measures of effectiveness, Data collection and test schedule, Results, Conclusions and recommendations, Bibliography
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Main Document Checksum:urn:sha-512:e11267ad4a0ce753b4ed090af2910d6410bf806a8701f15b00563d42a68d9614377fc5c3dba13a3faa877148a0cbf6f6e603ef40298ff79e7e5ac7d0bdd0e29f
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