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ProQuest (Firm)
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United States. Federal Highway Administration
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National Research Council (U.S.). Transportation Research Board
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SpringerLink (Online service)
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United States. Congress. Senate. Committee on Commerce, Science, and Transportation
552 results
Library of Congress. Congressional Research Service
516 results
Texas Transportation Institute
511 results
United States. Government Accountability Office
500 results
United States. General Accounting Office
445 results
United States. War Department
443 results
American Association of State Highway and Transportation Officials
367 results
United States. Congress. House. Committee on Interstate and Foreign Commerce
313 results
Texas. Department of Transportation
307 results
Geological Survey (U.S.)
287 results
United States. Congress. House. Committee on the District of Columbia
278 results
United States. Congress. House. Committee on Transportation and Infrastructure
263 results
United States. Department of Transportation
240 results
United States. Congress. Senate. Committee on Commerce
231 results
University of California, Berkeley. Institute of Transportation Studies
209 results
United States. Congress. House. Committee on Appropriations
208 results
Southwest Region University Transportation Center (U.S.)
205 results
United States. Congress. House
195 results
National Cooperative Highway Research Program
190 results
Taylor & Francis
180 results
United States. Congress. Senate. Committee on Environment and Public Works
172 results
United States. Congress. Senate. Committee on the District of Columbia
163 results
United States. Interstate Commerce Commission
163 results
United States. Bureau of the Census
160 results
United States. Federal Transit Administration
160 results
Transport and Road Research Laboratory
157 results
California. Department of Transportation
155 results
Partners for Advanced Transit and Highways (Calif.)
154 results
United States. Congress. House. Committee on Public Works and Transportation
152 results
United States. National Aeronautics and Space Administration
151 results
Knovel (Firm)
147 results
United States. Congress. Senate. Committee on Interstate Commerce
145 results
Langley Research Center
143 results
United States. Department of the Treasury
141 results
United States. Congress. House. Committee on Merchant Marine and Fisheries
135 results
United States. Congress. House. Committee on Ways and Means
131 results
United States. Department of the Interior
130 results
University Transportation Centers Program (U.S.)
129 results
Rand Corporation
127 results
United States. Urban Mass Transportation Administration
126 results
University of Texas at Austin. Center for Transportation Research
125 results
National Research Council (U.S.). Transportation Research Board. Annual Meeting
118 results
Texas. Department of Transportation. Research and Technology Implementation Office
113 results
United States. Congress. Senate. Committee on Appropriations
113 results
United States. National Transportation Safety Board
111 results
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107 results
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