SUBJECT
Express highways
110
Roads
22
Management
19
Design and construction
18
Economic aspects
14
Traffic engineering
13
Traffic flow
13
Design
8
Electronic traffic controls
7
Congresses
6
Disabled vehicles on express highways
6
Safety measures
6
Environmental aspects
5
Freeway operations
5
Law and legislation
5
Maintenance and repair
5
Traffic signs and signals
5
Eminent domain
4
Freeways
4
Highway capacity
4
Highway communications
4
Planning
4
Traffic accidents
4
Cities and towns
3
Costs
3
Intelligent transportation systems
3
Toll roads
3
Transportation
3
Urban transportation
3
Addresses, essays, lectures
2
Automation
2
Bridges
2
Cavite Coastal Expressway
2
Communication systems
2
Data processing
2
Fees
2
Finance
2
Guard fences
2
High occupancy vehicle lanes
2
Highway bypasses
2
Highway planning
2
History
2
Interchanges and intersections
2
Land use
2
Manila
2
Mathematical models
2
Real property
2
Reclamation of land
2
Research
2
Traffic congestion
2
more ...