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177 p.
Highway Research Record, Issue 459, 53p
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Highway Research Board Special Report, Issue 135, 140 p.
Highway Research Record, Issue 449, pp 1-13
Highway Research Board Special Report, Issue 143, 315 p.
Highway Research Record, Issue 461, pp 30-34
Highway Research Record, Issue 459, pp 13-28
NCHRP Report, Issue 143, 83 p.
Highway Research Record, Issue 476, pp 4-7
Highway Research Record, Issue 476, pp 30-35
Highway Research Record, Issue 459, pp 1-12
Highway Research Record, Issue 449, pp 71-73
Highway Research Record, Issue 449, pp 45-61
Highway Research Record, Issue 449, pp 21-33
Highway Research Record, Issue 463, 62 p.
Highway Research Record, Issue 459, p. 13-28
Highway Research Record, Issue 445, pp 1-11
Highway Research Board Special Report, Issue 139, 29 p.
Highway Research Record, Issue 423, pp 11-16
New Concepts In Urban Transportation, Volume 2, Issue 8, p. 240-2
Highway Research Record, Issue 414, 78p
Highway Research Record, Issue 400, pp 4-15
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