Efficient freight mobility is the result of successfully balancing the demand for transportation capacity and service with the quantity supplied of those services and capacities. Attaining this balance requires accurate assessment of transportation demands and the value of those demands in order to prioritize the provision of facilities and capacity to achieve efficient freight mobility. Basic knowledge of freight flows on state highways, county roads and city streets (hereinafter collectively called roadways), along with waterways and railways, is needed to generate basic information on the physical consumption of those roadways caused by the traffic using the infrastructure. Such information, often expressed in terms of tonnage on roadway segments or ton-miles on railways, can be used in the planning the physical maintenance, preservation or expansion of facilities. In fact, Washington State has adopted annual tonnage as the measure to identify its strategic freight corridors, primarily because the data can be readily generated or obtained for roadways, waterways and railways.


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    Washington State Freight System Resiliency

    A. Goodchild / E. Jessup / E. McCormack et al. | NTIS | 2009


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