関連のトピックス ...
関連のトピックス ...
Highway planning
Roads
22
Design and construction
9
Maintenance and repair
6
Traffic engineering
6
City planning
5
Economic aspects
5
Environmental aspects
5
Planning
5
Express highways
4
Transportation
4
Government policy
3
Location
3
Citizen participation
2
Civic improvement
2
Data processing
2
Environmental impact statements
2
Finance
2
Highway research
2
Research
2
Traffic flow
2
Transportation, Automotive
2
Case studies
1
Congresses
1
Costs
1
Environmental engineering
1
Environmental impact analysis
1
Frontage roads
1
Highway bypasses
1
Highway capacity
1
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