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1973
HIGHWAY VISIBILITY

Highway Research Board Special Report, Issue 134, 75 p.

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1973
URBAN AREA HIGHWAY GUIDE SIGNING

NCHRP Summary of Progress, p. 113-127

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1972
Motorist information systems

Highway Research Record, Issue 414, 78p

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1972
1972
EVALUATION OF DIAGRAMMATIC GUIDE SIGNS

Highway Research Record, Issue 414, pp 30-41

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1972
DIAGRAMMATIC SIGN STUDY

Highway Research Record, Issue 414, pp 42-49

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1972
1972
RECOGNITION OF TRAFFIC-CONTROL SIGNS

Highway Research Record, Issue 414, pp 16-23

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1971
Traffic control and driver information

Highway Research Record, Issue 366, 132p

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1971
Design of Sign Supports and Structures

Highway Research Record, Issue 346, 66p

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1971
LEGIBILITY AND BRIGHTNESS IN SIGN DESIGN

Highway Research Record, Issue 366, pp 37-47

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1971
TRAFFIC DELAY AND WARRANTS FOR CONTROL DEVICES

Highway Research Record, Issue 366, pp 79-91

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1971
1971
A COMPARISON OF SELECTED TRAFFIC INFORMATION DEVICES

Highway Research Record, Issue 366, pp 116-129

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1971
BREAKAWAY OVERHEAD SIGN BRIDGES, CRASH TESTING

Highway Research Record, Issue 346, pp 35-46

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1971
IMPACT-YIELDING SIGN SUPPORTS

Highway Research Record, Issue 346

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