SUBJECT
Transportation
14
Planning
8
Urban transportation
8
Traffic engineering
5
Travel time (Traffic engineering)
5
Infrastructure (Economics)
4
Local transit
4
Urban transportation policy
4
Choice of transportation
3
City planning
3
Economic conditions
3
Economic policy
3
Freight and freightage
3
Land use
3
Law and legislation
3
Transportation and state
3
Attitudes
2
Commuting
2
Development plan
2
Economic aspects
2
Environmental aspects
2
Exhaust gas
2
Mathematical models
2
Operations research
2
Passenger traffic
2
Ridership
2
Roads
2
Route choice
2
Terminals (Transportation)
2
Traffic safety
2
Urban poor
2
Addresses, essays, lectures
1
Aeronautics, Commercial
1
Agriculture
1
Air
1
Airports
1
Atlases, Philippine
1
Automobile parking
1
Bus driving
1
Bus lines
1
Buses
1
City traffic
1
Commercial vehicles
1
Communiting
1
Community development, Urban
1
Commuters
1
Consumer goods
1
Consumers
1
Cost of operation
1
Costs of operation
1
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