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TR News, Issue 331, pp 12-15
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Transportation Research Record: Journal of the Transportation Research Board, Volume 2672, Issue 23, 18p
Transportation Research Board 96th Annual Meeting, 20p
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Transportation Research Circular, Issue E-C208, 86p
Transportation Research Record: Journal of the Transportation Research Board, Issue 2600, 119p
Transportation Research Board 95th Annual Meeting, 16p
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