الموضوعات المستخلصة من بحثك.
الموضوعات المستخلصة من بحثك.
Transportation and state
Transportation
42
Environmental aspects
11
Planning
11
Social aspects
6
Transportation engineering
5
Cost effectiveness
4
Sustainable development
3
Telecommunication
3
Telecommunication policy
3
Air
2
Applied ethics
2
Automobile industry and trade
2
Automobiles
2
Choice of transportation
2
Civil engineering
2
Environmental protection
2
Evaluation
2
Finance
2
Goverment policy
2
Government policy
2
History
2
Infrastructure (Economics)
2
Juvenile literature
2
Pollution
2
Railroads
2
Research
2
Social aspectszUnited States
2
Technological innovations
2
Transportation, Automotive
2
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