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1976
EVALUATION OF SIGNING TO WARN OF WET WEATHER SKIDDING HAZARD

Transportation Research Record, Issue 600, pp 20-27

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1976
TOWARD MORE EFFECTIVE GRADE-CROSSING FLASHING LIGHTS

Transportation Research Record, Issue 562, pp 1-14

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1974-07
SUMMARY OF RAILROAD-HIGHWAY GRADE CROSSING RESEARCH ACTIVITY

Highway Research Circular, Issue 157, 5 p.

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1970
Traffic signals and signs

Highway Research Record, Issue 325, 61p

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1968
Guidance aspects of colored pavements and pavement markings - 5 reports

Highway Research Record, Issue 221, 84p

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1968
AN ANALYSIS OF FLASHING SYSTEMS

Highway Research Record, Issue 221, pp 72 - 84

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1968
ECONOMIC MODEL FOR THE MAINTENANCE OF TRAFFIC SIGNALS

Highway Research Record, Issue 254, pp 38-58

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1953
RELATION OF TRAFFIC SIGNALS TO INTERSECTION ACCIDENTS

Highway Research Board Bulletin, Issue 74

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Showing 101 - 108 of 108 records