This report presents guidance on evaluating the potential feasibility, cost, and benefits of investing in rail freight solutions to alleviate highway congestion from heavy truck traffic. An extensive research effort is documented and accompanied by a set of guidelines that present a three-phased approach to evaluating rail freight solutions: preliminary assessment, detailed analysis, and decisionmaking. This report will be useful for transportation planners in state and regional transportation agencies, freight planners in private transportation companies, and senior decisionmakers who control the funding and implementation of transportation investments. (Author/publisher) This report may be accessed by Internet users at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_586.pdf
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