AUTHOR
National Research Council (U.S.). Highway Research Board
National Research Council (U.S.). Highway Research Board. Meeting
3
Engineering Foundation (U.S.)
2
National Research Council (U.S.). Transportation Research Board
2
American Transit Association
1
National Research Council (U.S.). Committee on Passenger Transportation Economics
1
National Research Council (U.S.). Committee on Passenger and Freight Transportation Characteristics
1
National Research Council (U.S.). Committee on Urban Mass Transportation
1
National Research Council (U.S.). Highway Research Board. Committee on Future Concepts
1
Purdue University. School of Civil Engineering
1