DE - Mary: Organization field: "Research and Innovative Technology Administration" OR "Volpe National Transportation Systems Center” OR "Bureau of Transportation Statistics" OR "Office of Intermodalism" RI - RITASearch01.TRIDRITA.0001.3.11 RI - RITASearch01.TRIDRITA.0002.3.11 RI - RITASearch01.TRIDRITA.0003.3.11 RI - RITASearch01.TRIDRITA.0004.3.11 RI - RITASearch01.TRIDRITA.0005.3.11 RI - RITASearch01.TRIDRITA.0006.3.11 RI - RITASearch01.TRIDRITA.0007.3.11 RI - RITASearch01.TRIDRITA.0008.3.11