Subject
Federal aid to transportation
14
Appropriations and expenditures
6
Airlines Finance
2
Railroads, Local and light Finance
2
Transportation Finance Law and legislation
2
Transportation Safety measures
2
Transportation and state
2
Airlines Mergers
1
Competition
1
Cost of operation
1
Hazardous substances Transportation Safety measures
1
Highway law
1
Management
1
Railroad law
1
Railroad tracks
1
Railroads Passenger traffic
1
Railroads Passenger traffic Planning
1
Railroads Passenger traffic Security measures
1
Roads Finance Law and legislation
1
Traffic safety
1
Transportation Finance
1
Transportation Planning
1
Trucking Safety measures
1
Trucks Safety regulations
1