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Traffic flow -- South Africa -- Congresses (4)
Freight and freightage -- South Africa -- Congresses (3)
Heavy Vehicle Simulator (HVS) (3)
Intelligent transportation systems -- South Africa -- Congresses (3)
Pavement (3)
TDM (3)
Traffic congestion -- South Africa -- Johannesburg -- Congresses (3)
Transportation -- China -- Congresses (3)
Transportation -- Safety regulations -- South Africa -- Congresses (3)
Urban transportation -- South Africa -- Congresses (3)
Car ownership (2)
Choice of transportation -- South Africa -- Congresses (2)
Concrete (2)
Gauteng to Durban Freight Corridor (2)
Highway engineering -- South Africa -- Congresses (2)
Hot-mix asphalt (HMA) (2)
Infrastructure (2)
Intelligent transport systems (ITS) (2)
Pavements -- South Africa -- Quality control -- Congresses (2)
Railroads -- South Africa -- Management -- Congresses (2)
Roads -- Interchanges and intersections -- Congresses (2)
Traffic accidents -- South Africa -- Congresses (2)
Traffic circles -- South Africa -- Congresses (2)
Traffic flow -- South Africa -- Johannesburg -- Congresses (2)
Traffic safety -- South Africa -- Congresses (2)
Transportation -- Government policy -- South Africa -- Congresses (2)
Transportation -- Social aspects -- South Africa -- Congresses (2)
Transportation -- South Africa -- Management (2)
Transportation, Automotive -- Cost of operation (2)
Trucking -- South Africa -- Congresses (2)
AASHO Road Test (1)
Accelerated and Shared Economic Growth Initiative of South Africa [ASGISA] (1)
Accelerated Pavement Testing technology (APT) (1)
Adhesion (1)
Administrative of Road Traffic Offences Act (AARTO) (1)
Affordability (1)
Africa Cup of Nations Soccer Tournament 1996 (1)
Aging (1)
Agricultural (1)
Air travel -- Political aspects -- South Africa -- Congresses (1)