This paper discuses the dimensions of the freight transportation system, defines freight mobilityconstraints, and presents catalogs of low-cost improvement actions that have been demonstratedto be effective in enhancing freight mobility. While low-cost improvements for the highwaymode may include physical, operational, and regulatory actions, those for rail and deepwaterports are predominantly operational and regulatory actions. The catalogs of improvementactions developed from case studies indicate that low-cost improvements have been successfullyimplemented in addressing freight mobility constraints and there is increased interest in the useof these strategies.
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