David J. Forkenbrock

TL;DR: In this article, the authors estimate external costs for four representative types of freight trains and compare them with the private costs experienced by railroad companies, including accidents (fatalities, injuries, and property damage); emissions (air pollution and greenhouse gases); and noise.

TL;DR: In this paper, the authors present guidance for practitioners in assessing the social and economic implications of transportation projects for their surrounding communities, based on a literature review and comprehensive survey of state departments of transportation and metropolitan planning organizations.

TL;DR: In this article, the authors estimate four general types of external costs for intercity freight trucking and compare them with the private costs incurred by carriers, finding that external costs are equal to 13.2% of private costs and user fees would need to be increased about threefold to internalize these external costs.

TL;DR: In this article, the authors apply a geographic information system (GIS) to blend U.S. Census data with the results from emission and dispersion models of vehicle-generated pollutants, and from noise propagation models.

TL;DR: In this paper, the authors examine the nature and level of economic benefits that result from highway investments and argue that road user benefits should form the basis for a decision of whether or not to invest public funds to upgrade a highway.