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1974
1973
Visibility and driver information

Highway Research Record, Issue 440, 69p

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1973
REVIEW OF VISIBILITY FACTORS IN ROADWAY SIGNING-WITH DISCUSSION

Highway Research Board Special Report, Issue 134, pp 28-40

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1973
1972-03
ROADWAY DELINEATION SYSTEMS

NCHRP Research Results Digest, Issue 36, 17 p.

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1972
ROADWAY DELINEATION SYSTEMS

NCHRP Report, Issue 130, 349 p.

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1972
RECOGNITION OF TRAFFIC-CONTROL SIGNS

Highway Research Record, Issue 414, pp 16-23

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1971
1971
1970
1970
INTERCHANGE RAMP COLOR DELINEATION AND MARKING STUDY

Highway Research Record, Issue 325, pp 36-50

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1969
International transportation topics

Highway Research Record, Issue 299, 50p

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1968
East Los Angeles Interchange Operation Study

Highway Research Record, Issue 244, pp 27-46

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1968
Red colored pavement

Highway Research Record, Issue 221, pp 15-22

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