Book 3,430 Conference Proceeding 121 Serial 64 Electronic 35 Journal 35 Government Document 9 Reference Material 4 see all ...

T - Technology 2,570 H - Social Science 770 K - Law 26 N - Fine Arts 11 R - Medicine 10 Z - Library Science 10 V - Naval Science 8 G - Geography, Anthropology, Recreation 6 Q - Science 6 U - Military Science 6 L - Education 5 S - Agriculture 4 C - Historical Sciences 3 J - Political Science 2 E - United States History 1 P - Language and Literature 1 see all ...

National Research Council (U.S.) Transportation Research Board 2,218 American Association of State Highway and Transportation Officials 1,181 United States Federal Highway Administration 1,111 National Cooperative Highway Research Program 794 United States Federal Aviation Administration 399 Airport Cooperative Research Program 290 United States Federal Transit Administration 231 Transit Cooperative Research Program 222 Transit Development Corporation 209 Kassabian, Naomi 137 National Research Council (U.S.) Transportation Research Board. Annual Meeting 95 National Research Council (U.S.) Transportation Research Board. Meeting 91 National Research Council (U.S.) Highway Research Board 80 Crump, Edythe Traylor 48 National Cooperative Freight Research Program 45 Second Strategic Highway Research Program (U.S.) 45 Kaplan, Elizabeth W 42 Cambridge Systematics 40 United States Department of Transportation. Research and Innovative Technology Administration 39 National Cooperative Transit Research & Development Program (U.S.) 36 United States Federal Motor Carrier Safety Administration 29 United States Urban Mass Transportation Administration 27 National Academies of Sciences, Engineering, and Medicine (U.S.) Transportation Research Board 26 Commercial Truck and Bus Safety Synthesis Program (U.S.) 22 Turnbull, Katherine F 19 Hazardous Materials Cooperative Research Program 18 United States Pipeline and Hazardous Materials Safety Administration 17 Herman, Scott C 16 National Research Council (U.S.) Highway Research Board. Annual Meeting 15 United States National Highway Traffic Safety Administration 15 see all ...

English 3,513 Undetermined 11 German 1

Technical reports 810 Congresses 406 Conference papers and proceedings 196 Electronic books 103 Periodicals 67 Handbooks, manuals, etc 60 Handbooks and manuals 57 Abstracts 19 Bibliography 19 Electronic book 19 Actes de congrès 18 Bibliographies 16 Case studies 14 Statistics 13 Congress 11 Congrès 9 Specifications 9 CD-ROMs 8 Databases 8 Guides, manuels, etc 8 Conference papers and proceedings 6 Congrès 6 Périodiques 5 proceedings (reports) 5 Timetables 4 Academic theses 3 Catalogs 3 Electronic journals 3 Geographic information systems 3 Government publications 3 see all ...

Since 2020 2 1980 1 1981-1993 1 21st century 1 Since 1981 1 United States 1

United States 1,437 États-Unis 34 Canada 26 États-Unis 15 North America 9 Developing countries 7 Europe 3 Great Lakes (North America) 3 Alaska 2 Aleutian Islands Region 2 Bering Sea 2 British Columbia 2 Estados unidos 2 States 2 U.S. States 2 Abstracts 1 Amérique du Nord 1 Asia 1 Atlantic Coast (U.S.) 1 California 1 China 1 Developing countires 1 France 1 Germany 1 Germany (West) 1 Great Lakes 1 Gulf Coast (U.S.) 1 Hawaii 1 Illinois 1 Los Angeles 1 see all ...