Transportation Research Board of the National Academies 2013 Transportation research record no. 2364, 2635

2013 , [2017]

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Transportation Research Board of the National Academies 2013 Transportation research record no. 2345-2346 . Policy ; 2013

v. 1 , v. 2

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Transportation Research Board of the National Academies 2013- Transportation research record no. 2340-2341, 2427-2428, 2503, 2570, 2627, v. 2672 (issue 25)

2013, v. 1 , 2013, v. 2 , 2014, v. 1 , 2014, v. 2 , [2015] , [2016] , [2017] , 2018

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Transportation Research Board of the National Academies 2013 Transportation research record no. 2327

2013

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Transportation Research Board of the National Academies 2013 Transportation research record no. 2326

2013

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Transportation Research Board of the National Academies 2012 Transportation research record no. 2318

2012

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Transportation Research Board of the National Academies 2012 Transportation research record no. 2320

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Transportation Research Board of the National Academies 2012- Transportation research record no. 2321, 2365, 2434, 2518, 2602, 2663

2012 , 2013 , 2014 , [2015] , [2016] , [2017]

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Transportation Research Board of the National Academies 2012- Transportation research record no. 2279, 2515, 2583

[2015] , [2016]

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Transportation Research Board of the National Academies 2012 Transportation research record no. 2273

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