The creation and application of a national freight flow model for South Africa

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dc.contributor.authorHavenga, Jan H.
dc.contributor.authorPienaar, Wessel Johannes
dc.date.accessioned2012-08-17T12:43:50Z
dc.date.available2012-08-17T12:43:50Z
dc.date.issued2012-04
dc.descriptionThe original publication is available at http://www.scielo.org.za
dc.description.abstractSouth Africa suffered from a historical lack of freight-flow information that was detrimental to infrastructure planning, optimal network development and market structuring. This paper proposes a methodology that can fill this gap, be repeated annually and is, by its nature, not prone to the errors of market surveys. The methodology develops a comprehensive description of South Africa's surface freight flow market space based on the definition of four definitive freight flow market segments. The results from the annual South African National Roads Agency (SANRAL) traffic counts are allocated to these segments to develop national road freight flows. For rail freight flows, the rail database is reclassified on a station-to-station (i.e. origin-destination) basis to match the freight flow market segments developed. Consequently, modal flows, market share and total flows for all freight flow market segments and the geographical groupings with the segments can be analysed and reported each year. The results confirm the deteriorating role of South Africa's rail system amidst growing freight demand, as well as the concomitant over-cropping of the road network, and therefore enable the development of specific national freight transport policy recommendations.en_ZA
dc.identifier.citationHavenga, J. H. & Pienaar, W. J. 2012. The creation and application of a national freight flow model for South Africa. Journal of the South African Institution of Civil Engineering, 54(1):2-13en_ZA
dc.identifier.issn1021-2019 (print)
dc.identifier.urihttp://hdl.handle.net/10019.1/49297
dc.publisherScielo South Africaen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectFreight and freightage -- South Africa -- Forcastingen_ZA
dc.subjectFreight market shareen_ZA
dc.subjectMarket surveys -- South Africa.en_ZA
dc.subjectTransportation -- South Africa.en_ZA
dc.titleThe creation and application of a national freight flow model for South Africaen_ZA
dc.typeArticleen_ZA
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