SUBJECT
Urban transportation policy
29
Planning
9
Urban transportation
7
Transportation
6
Congresses
5
Transportation and state
4
Federal aid to transportation
3
Roads
3
Land use
2
Traffic congestion
2
Traffic engineering
2
Addresses, essays, lectures
1
Air quality management
1
Buses
1
City planning
1
City traffic
1
Cost effectiveness
1
Electronic books
1
Energy policy
1
Environmental aspects
1
Environmental impact statements
1
Express highways
1
Federal-city relations
1
Finance
1
Gasoline supply
1
Government policy
1
History
1
Local transit
1
Management
1
Metropolitan government
1
Multiple use
1
Petroleum
1
Prevention
1
Research
1
Reserves
1
Right of way
1
Social sciences
1
Traffic flow
1
Urban policy
1