SUBJECT
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Highway bypasses
2
Highway capacity
4
Highway communications
4
Highway departments
1
Highway planning
2
Highway research
1
History
2
Intelligent transportation systems
3
Interchanges and intersections
2
Intergovernmental cooperation
1
Land use
2
Land use, Urban
1
Law and legislation
5
Lighting
1
Maintenance and repair
5
Management
19
Manila
2
Manila North Diversion Road
1
Manila South Diversion Road
1
Mathematical models
2
Motor vehicles
1
PATREG (Computer program)
1
Parks
1
Pavements
1
Pavements, Asphalt concrete
1
Pavements, Reinforced concrete
1
Planning
4
Privatization
1
Ramp metering (Traffic engineering)
1
Real property
2
Reclamation of land
2
Research
2
Road construction
1
Road drainage
1
Roads
22
Runoff
1
Safety measures
6
Service stations
1
Shoulders
1
Skidding
1
Social aspects
1
Testing
1
Toll roads
3
Tourism
1
Traffic accidents
4
Traffic congestion
2
Traffic engineering
13
Traffic estimation
1
Traffic fatalities
1
Traffic flow
13
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