Census data have long played a central role in transportation planning and analyses. In particular, the planning community has made extensive use of the Census Long Form. Beginning with this decade, the Census Bureau's American Community Survey (ACS) will replace the Census Long Form. This practitioner's guidebook focuses on incorporating ACS data into the transportation planning processes at national, state, metropolitan, and local levels. The guidebook evaluates ACS data and products and demonstrates their uses within a wide range of transportation planning applications. Transportation planners, travel demand forecasters, and others that conduct population and demographic analyses will find this report of significant use. As these transportation professionals struggle to use the limited local data and changing national data as the basis for transportation plans, the report will provide methods and tools to improve the connection between planning and programming. (Author/publisher) This report may be accessed by Internet users at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_588.pdf
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