Subject
Federal aid to transportation
Appropriations and expenditures
89
Transportation and state
85
Roads Finance
74
Infrastructure (Economics) Finance
67
Highway law
49
Roads Finance Law and legislation
44
Transportation Finance
41
Transportation Finance Law and legislation
30
Transportation Law and legislation
27
Rules and practice
26
Local transit Finance
22
Transportation Capital investments
22
Infrastructure (Economics)
17
Railroads Finance
17
Aeronautics, Commercial Law and legislation
16
Federal aid to housing
16
Transportation Safety measures
15
Roads States Finance
13
Traffic safety Finance
13
Motor fuels Taxation
12
Grants-in-aid
11
Local transit Finance Law and legislation
11
Public-private sector cooperation
11
Transportation Planning
11
Transportation, Automotive Law and legislation
11
Railroads Passenger traffic
10
Transportation
10
Local transit
9
Traffic safety
9
Administrative agencies Appropriations and expenditures
8
High speed trains Finance Law and legislation
8
Freight and freightage
7
Infrastructure (Economics) Law and legislation
7
Interstate Highway System
7
Job creation Law and legislation
7
Management
7
Railroads Passenger traffic Finance
7
Aeronautics Safety measures
6
Aeronautics, Commercial Finance
6
Finance
6
Highway planning
6
Local transit Law and legislation
6
Railroad law
6
Railroads and state
6
Transportation Research
6
User charges
6
Water resources development Finance
6
Aeronautics, Commercial Safety regulations
5
Infrastructure (Economics) Government policy
5
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