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Schoemanskloof Vissim Modelling
South Africa
Project Type : Transport Modelling
Detailed Public Transport Plan
for the Inner City and Outer Ring Client Name Trans African Concessions(TRAC)
Area Country South Africa
Start Date 2015
Rea Vaya BRT NMT Facilities Finish Date 2016
City of Tshwane NMT Strategy SMEC was appointed by TRAC to do a free flow level of service (LOS) analysis for
the section of the N4 between the Crossroads Interchange and the Montrose
Intersection. Specifically the impact of heavy vehicles on the free flow speeds
Drakenstein CITP
needed to be investigated. The approach for this project was to build a Vissim
micro-simulation model, which could then be used to analyse the route.
Development of a Strategic
Corridor Plan for the N2 Corridor
The main objective of this project was to determine the impact of heavy vehicles on
Schoemanskloof Vissim Model the free flow speeds, and the densities. Heavy vehicle speeds are affected by steep
vertical grades, and should a climbing lane no be present, light vehicles are
Traffic Impact Study of Line 2B negatively impacted. The objective was to determine the extent, and location of
City of Tshwane unacceptable densities. For this project, the section of the N4 was modelled with
passing lanes, where allowed. The speed profile for heavy vehicles was included by
Cato Ridge Transport Model means of desired speed decisions and reduced speed areas. This then yielded the
densities, and LOS in each direction. This could then be plotted on graphs, to give
GRRIN Scenario Fare Testing an indication of how light vehicle speeds drop, and densities increase over the road
section efficiency.
Relocation of Richard’s Bay Airport Professional Staff provided : Skills provided :
Rwanda Transportation Engineer Vissim Micro-Simulation
Civil Infrastructure Engineer (Transport modelling and
Australia Traffic Engineer network analysis)
