Author
United States. Bureau of the Census
203 results
United States. National Highway Traffic Safety Administration
190 results
ProQuest (Firm)
135 results
United States. Federal Highway Administration
117 results
Texas Transportation Institute
90 results
Transport and Road Research Laboratory
86 results
United States. National Transportation Safety Board
67 results
National Center for Statistics and Analysis (U.S.)
55 results
Transport Research Laboratory (Great Britain)
53 results
National Research Council (U.S.). Transportation Research Board
52 results
Library of Congress. Congressional Research Service
42 results
Road Research Laboratory
41 results
Texas. Department of Transportation
40 results
University of North Carolina (System). Highway Safety Research Center
37 results
Turner-Fairbank Highway Research Center
34 results
Texas. State Department of Highways and Public Transportation
32 results
United States. Bureau of Motor Carrier Safety
31 results
Texas. Department of Public Safety. Accident Records Bureau
30 results
United States. Bureau of Public Roads
29 results
American Association of State Highway and Transportation Officials
23 results
Broughton, J.
22 results
Joint Highway Research Project (Ind.)
22 results
Texas. Department of Public Safety. Statistical Services
21 results
Scott, Elizabeth S.
20 results
University of California, Berkeley. Institute of Transportation Studies
20 results
Australian Road Research Board
19 results
TRL Library Services
18 results
Hatfield, Nancy J.
17 results
Texas. Department of Transportation. Research and Technology Implementation Office
17 results
California. Department of Transportation
16 results
United States. Post Office Department
15 results
General Motors Corporation. Research Laboratories
14 results
Texas. Department of Public Safety
14 results
Texas. Highway Department
14 results
Evans, Leonard
13 results
Partners for Advanced Transit and Highways (Calif.)
13 results
TRL Limited
13 results
United States. Congress. House. Committee on Public Works and Transportation
13 results
National Cooperative Highway Research Program
12 results
Public Utilities Commission of the District of Columbia
12 results
Statens väg- och trafikinstitut
12 results
Taylor & Francis
11 results
United States. Congress. House. Committee on Interstate and Foreign Commerce
11 results
United States. Congress. Senate
11 results
United States. Congress. Senate. Committee on Commerce, Science, and Transportation
11 results
United States. Department of Transportation
11 results
University of Michigan. Highway Safety Research Institute
11 results
Jacobs, G. D.
10 results
Michael, Harold L.
10 results
Hobbs, J. A.
9 results
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