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1989
1989
EFFECTS OF LIGHT SOURCES ON HIGHWAY SIGN COLOR RECOGNITION

Transportation Research Record, Issue 1213, p. 27-34

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1987
LEGIBILITY OF FREEWAY GUIDE SIGNS AS DETERMINED BY SIGN MATERIALS

Transportation Research Record, Issue 1149, pp 22-31

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1985-12
VISIBILITY REQUIREMENTS FOR OVERHEAD GUIDE SIGNS

Transportation Research Circular, Issue 297, p. 21-22

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1984
MIDBLOCK CROSSWALKS: A USER COMPLIANCE AND PREFERENCE STUDY

Transportation Research Record, Issue 959, pp 41-47

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1977
1976
EVALUATION OF HIGH-INTENSITY SHEETING FOR OVERHEAD HIGHWAY SIGNS

Transportation Research Record, Issue 611, pp 28-34

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1976
1976
OVERHEAD SIGNS WITHOUT EXTERNAL ILLUMINATION

Transportation Research Record, Issue 611, pp 38-44

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1974
Safety appurtenances

Transportation Research Record, Issue 488, 93p

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1971
Design of Sign Supports and Structures

Highway Research Record, Issue 346, 66p

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1971
1971
1971
BREAKAWAY OVERHEAD SIGN BRIDGES, CRASH TESTING

Highway Research Record, Issue 346, pp 35-46

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1969
1965
1965
EFFECTIVENESS OF SIGN BACKGROUND REFLECTORIZATION

Highway Research Record, Issue 70, pp 74-86

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