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Abstract

This study examines and contrasts the use of intercept surveys at different locations (a highway roadside, a port and a warehouse) to generate details useful to states’ modeling and freight planning needs for truck movements, particularly at the sub-county level. Data collected at roadside locations provides complete trip detail for all inter-regional movements (highway locations) and also trip detail for almost all intra-regional freight movements (warehouse/distribution center locations). Interviews at the warehouse/distribution center and interstate highway weigh station provide the highest commodity type response rates, while the preponderance of container traffic at the port facility yields limited responses on payload information. Different locations yielded differing question response rates.

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