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1972
PENNDOT'S TELECOUNT SYSTEM

Highway Research Record, Issue 399, pp 71-86

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1972
CHANGEABLE-MESSAGE SIGNS IN OHIO

Highway Research Board Special Report, Issue 129, p. 7-12

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1972
ESTIMATION OF SPEED FROM PRESENCE DETECTORS

Highway Research Record, Issue 388, pp 73-83

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1971
1971
MOTORIST AID SYSTEMS

NCHRP Synthesis of Highway Practice, Issue 7, 28p

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1970
1970
1970
1969
1969
PENNSYLVANIA'S HELICOPTER AMBULANCE STUDY

Highway Research Record, Issue 272, pp 50-64

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1965
1964
SOME EXPERIMENTS AND APPLICATIONS

Highway Research Board Special Report, Issue 79, p. 119-136

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1963
Stability of rock slopes - 5 reports

Highway Research Record, Issue 17, 52P

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