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1948
CERTAIN STRUCTURAL COMPONENTS OF LETTERS FOR IMPROVING THE EFFICIENCY OF THE STOP SIGN

Highway Research Board Proceedings, Volume 27

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1948
TRAFFIC PATTERNS AT A NARROW BRIDGE

Highway Research Board Proceedings, Volume 27

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1944
DESIGN OF SIGNS FOR THE PENTAGON ROAD NETWORK

Highway Research Board Proceedings, Volume 23

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1943
TRAFFIC CONTROL DEVICES FOR BLACKOUT DRIVING

Highway Research Board Proceedings, Volume 22

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1942
REPORT ON THE COMMITTEE ON TRAFFIC CONTROL AND PROTECTION AT URBAN AND RURAL SCHOOL ZONES

Highway Research Board Proceedings, Volume 21

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1941
MARKING HIGHWAY CURVES WITH SAFE SPEED INDICATIONS

Highway Research Board Proceedings, Volume 20

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1941
REPORT OF COMMITTEE ON SAFE APPROACH SPEEDS AT INTERSECTIONS

Highway Research Board Proceedings, Volume 20

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1940
LEGIBILITY DISTANCES OF HIGHWAY DESTINATION SIGNS IN RELATION TO LETTER HEIGHT, LETTER WIDTH, AND REFLECTORIZATION

Highway Research Board Proceedings, Volume 19

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1939-12
TRAFFIC SIGNS

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1939-12
DEVELOPMENT OF INDICES FOR THE USE OF STOP SIGNS IN RURAL AREAS

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1939
OPERATING SPEEDS AND SPEED ZONING

Rural Traffic Problems

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1939
WARNING SIGNS AND DEVICES FOR ORDINARY HAZARDS, SAFE SPEED SIGNS, ETC.

Rural Traffic Problems

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1939
SPECIAL HAZARD WARNING SIGNS

Rural Traffic Problems

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1937-06
ADDRESS

Highway Research Board Roadside Development Committee Reports

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1935
REPORT OF SUBCOMMITTEE ON TRAFFIC REGULATION IN MUNICIPALITIES

Highway Research Board Proceedings, Volume 14

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1935
EFFECTIVENESS OF VARIOUS HIGHWAY SIGNS

Highway Research Board Proceedings, Volume 14

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1933
A STUDY OF TRAFFIC LAW VIOLATIONS

Highway Research Board Proceedings, Volume 12

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1931
REPORT OF COMMITTEE ON HIGHWAY TRANSPORTATION

Highway Research Board Proceedings, Volume 10

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1931
LAW OBSERVANCE AND ENFORCEMENT METHODS

Highway Research Board Proceedings, Volume 10

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1930
REPORT OF THE COMMITTEE ON THE CAUSES AND PREVENTION OF HIGHWAY ACCIDENTS

Highway Research Board Proceedings, Volume 9

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1929
REPORT OF COMMITTEE ON MAINTENANCE

Highway Research Board Proceedings, Volume 8

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1928
COLOR AND FORM OF TRAFFIC SIGNALS AND SIGNS IN RELATION TO SAFETY

Highway Research Board Proceedings, Volume 7

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1927
REPORT ON FORMATION OF SPECIAL COMMITTEE ON CAUSES AND PREVENTION OF HIGHWAY ACCIDENTS

Highway Research Board Proceedings, Volume 6

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1926
DISCUSSION OF REPORT OF COMMITTEE ON MAINTENANCE

Highway Research Board Proceedings, Volume 5

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1926
REPORT OF COMMITTEE ON MAINTENANCE

Highway Research Board Proceedings, Volume 5, p. 242-262

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Showing 1776 - 1800 of 1801 records