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Completed final reports for all scan are available below in PDF format. Additional reports and documentation for individual scans are available on each scan's page (column at left).

Program Year 2018

Program Year 2017

Program Year 2016

Program Year 2015

Program Year 2014

Program Year 2013

Program Year 2012

Program Year 2011

Program Year 2010

Program Year 2009

Program Year 2008

Program Year 2007

Learn more about any of the Domestic Scan topics by searching TRID.

TRID is an integrated database that combines the records from TRB’s Transportation Research Information Services (TRIS) Database and the OECD’s Joint Transport Research Centre’s International Transport Research Documentation (ITRD) Database. TRID provides access to more than one million records of transportation research worldwide.