50th Annual Transportation Research Forum, Portland, Oregon, March 16-18, 2009

This research focuses on estimating and understanding the costs and causes of transportation related supply chain disruptions. In-depth interviews with logistics managers [...]

Abstract - With continued increases in trade volumes, lengthening of supply chains due to globalization, and an increased focus on disruptions, resiliency has become an i [...]

This paper proposes an optimal vehicle dispatching policy for transportation disruption. This policy determines the optimal vehicle capacity and dispatching time along a [...]

In this paper, we estimate the long-run gasoline price and income elasticity of VMT for the period 2000-2008. Most of the previous studies use the very common classes of [...]

This research assesses how U.S. transit agencies have taken advantage of congestion pricing projects and answers two questions: (1) what role has transit played in U.S. c [...]

In addition to providing funding for our aging transportation infrastructure, congestion pricing can improve traffic flow, safety, and trip reliability. Given these benef [...]

A mathematical model and methodology are presented in this paper that can be used to determine the sustainability of a bus service. To formulate the optimization model, a [...]

This paper proposes practical Demand Responsive Transit (DRT) system with a new reservation processing called “Insured Announced Time Reservation System (IATRS)”. DRT ser [...]

Transit managers continue to strive for greater operating efficiency while maintaining an appropriate balance between cost effectiveness and customer service. Over the pa [...]

Among energy supply resources, crude oil has special importance as it supplies more than half of the world energy demands, today. In oil trade, transportation costs have [...]