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Transportation Research News, Issue 66, p. 4-6
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NCHRP Research Results Digest, Issue 72, 10 p.
Transportation Research Circular, Issue 168, p. 1-8
Transportation Research Circular, Issue 168, p. 9-15
Transportation Research Circular, Issue 168, p. 16-18
NCHRP Research Results Digest, Issue 70, 3 p.
Transportation Research Board Special Report, Issue 156, pp 53-63
Transportation Research Record, Issue 543, pp 16-33
Transportation Research Record, Issue 541, pp 1-11
Transportation Research Board Special Report, Issue 153, pp 237-240
Transportation Research Record, Issue 523, pp 15-19
Highway Research Record, Issue 376, pp 1-4
Highway Research Record, Issue 376, pp 14-17
Highway Research Record, Issue 376, pp 18-20
Highway Research Record, Issue 376, p 37
Highway Research Record, Issue 376, pp 85-96
Highway Research Record, Issue 272, pp 39-49
Highway Research Board Proceedings, Volume 36
Highway Research Board Bulletin, Issue 142, 10p
Highway Research Board Bulletin, Issue 142, 12p
Highway Research Board Bulletin, Issue 91
Highway Research Board Bulletin, Issue 17, pp 12-14
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Rural Traffic Problems
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