Transportation Research Part A: Policy and Practice
Transportation Research Part A > 2009 > 43 > 7 > 639-653
Transportation Research Part A > 2009 > 43 > 7 > 665-684
Transportation Research Part A > 2009 > 43 > 7 > 692-707
Transportation Research Part A > 2009 > 43 > 7 > 685-691
Transportation Research Part A > 2009 > 43 > 7 > 654-664