AUTHOR
National Research Council (U.S.). Transportation Research Board
1,502
National Research Council (U.S.). Highway Research Board
756
Transport and Road Research Laboratory
428
American Association of State Highway and Transportation Officials
403
National Cooperative Highway Research Program
363
United States. Federal Highway Administration
318
National Research Council (U.S.). Transportation Research Board. Meeting
235
National Research Council (U.S.). Highway Research Board. Meeting
188
Transit Cooperative Research Program
153
United States. Federal Transit Administration
145
Transit Development Corporation
130
Japan International Cooperation Agency
92
Road Research Laboratory
76
Organisation for Economic Co-operation and Development
55
Stichting Wetenschappelijk Onderzoek Verkeersveiligheid
54
National Center for Transportation Studies
41
American Association of State Highway Officials
32
United States. Urban Mass Transportation Administration
25
Schreuder, D. A.
22
Jackson, R. L.
19
Australian Road Research Board
18
National Cooperative Transit Research & Development Program (U.S.)
18
Kraay, J. H.
17
ALMEC
16
Australian Road Research Board. Conference
16
Watts, G. R.
16
Sheppard, D.
15
Department of Public Works and Highways
13
Katahira & Engineers International
13
Quenault, S. W.
13
Institute of Transportation Engineers
12
United States. Bureau of Public Roads
12
Cambridge Systematics
11
Sabey, Barbara E.
11
Texas Transportation Institute
11
U.S. Bureau of Public Roads
11
World Bank
11
Asian Development Bank
10
National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel
10
Philippines. Ministry of Transportation and Communications
10
Turnbull, Katherine F.
10
United States. Federal Aviation Administration
10
American Association of State Highway and Transportation Officials. Subcommittee on Maintenance
9
Colwill, D. M.
9
National Research Council (U.S.). Highway Research Board. Committee on Freeway Operations
9
National Research Council (U.S.). Highway Research Board. Committee on Operational Effects of Geometrics
9
Tanner, J. C.
9
Transportation Research Board
9
Australian Road Research Board, 7th conference, 1974, Adelaide
8
Bly, P. H.
8
more ...