Author
United States Federal Railroad Administration. Office of Research and Development
52
United States Federal Railroad Administration
27
United States Federal Railroad Administration. Office of Policy and Program Development
18
United States General Accounting Office
13
United States Congress. Senate. Committee on Interstate Commerce
12
United States Congress. House. Committee on Interstate and Foreign Commerce
10
John A. Volpe National Transportation Systems Center (U.S.)
9
United States Urban Mass Transportation Administration
9
De Leuw, Cather & Company
8
United States Congress. Office of Technology Assessment
8
Transportation Systems Center
7
United States National Park Service
7
National Institute of Standards and Technology (U.S.)
6
United States Urban Mass Transportation Administration. Office of Rail and Construction Technology
6
American Society for Testing Materials
5
Battelle Memorial Institute Columbus Laboratories
5
Massachusetts Institute of Technology Department of Mechanical Engineering
5
AiResearch Manufacturing Company of Los Angeles (Calif.)
4
Transportation Test Center (U.S.)
4
United States National Park Service. Denver Service Center
4
United States Office of Noise Abatement and Control
4
United States Urban Mass Transportation Administration. Office of Technology Development and Deployment
4
America's Industrial Heritage Project
3
Association of American Railroads
3
Inter-American High Commission United States Section
3
Jet Propulsion Laboratory (U.S.)
3
Mitre Corporation Metrek Division
3
Pan American Railway Congress Association Washington, D.C., and Atlantic City
3
Sellards & Grigg, Inc
3
United States Bureau of Foreign and Domestic Commerce
3
United States Bureau of Standards
3
United States Department of Energy
3
United States Department of Transportation. Office of University Research
3
United States Federal Highway Administration
3
United States Urban Mass Transportation Administration. Office of Policy and Program Development
3
A.T. Kearney, Inc
2
Association of American Railroads Research and Test Department
2
Bolt, Beranek, and Newman, inc
2
Brand, Patrick C
2
Chappell, Gordon S
2
Childs Engineering Corporation
2
Clemensen, A. Berle
2
Dayman, Bain
2
Diamant, E. S (Emanuel S.)
2
ENSCO
2
ENSCO Engineering Test and Analysis Division
2
ENSCO Transportation and Instrumentation Sciences Division
2
Ensco, inc Engineering Test and Analysis Division
2
Frederic R. Harris, Inc
2
Gannett Fleming Transportation Engineers
2
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