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Transportation Research Circular, Issue 380, 15 p.
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Transportation Research Circular, Issue 379, 7 p.
TR News, Issue 153, 10-5
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TR News, Issue 153, 7 p.
TR News, Issue 152, p. 2-6, 32
Transportation Research Record, Issue 1318, vii + 146p
Transportation Research Circular, Issue 384, p. 103-108
Proceedings of the Conference, Strategic Highway Research Program and Traffic Safety on Two Continents, Part One, v.p.
Proceedings of the 1991 Geographic Information Systems (GIS) for Transportation Symposium, p. 365-369
Proceedings of the 1991 Geographic Information Systems (GIS) for Transportation Symposium, p. 177-200
Transportation Research Record, Issue 1324, p. 8-10
Transportation Research Record, Issue 1324, p. 1-7
Transportation Research Record, Issue 1305, p. 291-304
Transportation Research Record, Issue 1318, p. 111-117
Transportation Research Record, Issue 1318, p. 118-121
Transportation Research Record, Issue 1318, p. 98-103
Transportation Research Record, Issue 1318, p. 104-110
Transportation Research Record, Issue 1318, p. 93-97
Transportation Research Board Special Report, Issue 232, 98 p.
Transportation Research Circular, Issue 366, p. 35-38
Issue 1, 7 p.
TR News, Issue 148, p. 32-37
Transportation Research Circular, Issue 344, p. 15-20
Transportation Research Circular, Issue 344, p. 21-24
Transportation Research Record, Issue 1243, p. 47-53
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