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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
161

The development and application of a freight transport flow model for South Africa

Havenga, Jan H. 12 1900 (has links)
Thesis (DPhil (Logistics))--University of Stellenbosch, 2007. / South Africa currently experiences the double jeopardy problem of catching up to global economic competitiveness whilst at the same time feeling the pressures of sustainability management spearheaded by a global agenda. Global sustainability is defined as growth that is shared without depleting natural resources or damaging the environment. Academic disciplines are challenged to make a contribution and economics as such should contribute by providing the lead and lag indicators for the planning and measurement of scarce resources usuage. This integrative view includes economic sub-disciplines, such as logistics. This integrative view is an acknowledged part of the economics discipline, except that the macro-economic context of some sub-disciplines, such as logistics, often receives less attention during the course of academic activities. The distribution of resources and outputs in the economy is a logistics controlled cross-cutting factor, but suffers from a lack of macro-economic perspective, and lead and lag orientated measurement. This state of the affairs is a historic backlog of logistics and its specific position within economics. During the primary economic era the world began to configure networks and markets, which became more pronounced and settled with the dawn and settling of the industrial era. Logistics then was a “given” and did not receive much thought even as industrial, market economies developed. Transport was regarded as an administered cost, i.e. inefficiencies in logistics systems were evenly distributed between competitors, not giving any specific entity an advantage. With the advent of global competition and the diminishing returns on other cost saving measures, companies began to collaborate and integrate logistics functions within value chains, but the administered part of transport costs failed to receive the attention it required. In this way, global competitors did begin to experience disadvantages on a national level as whole economies suffered from inefficiencies in logistics and specifically transport systems.
162

South Africa's freight transport involvement options in Sub-Saharan Africa : declining infrastructure and regulatory constraints

De Bod, Anneke 12 1900 (has links)
Thesis (MComm (Logistics))--Stellenbosch University, 2008. / Although global changes like political security, depletion of natural resources, energy supply and global warming are affecting all continents; Africa struggle the most to cope with these changes. This is due to the many historical impediments that Africa still has to overcome. Examples of these impediments are the negative effects caused by civil wars, poverty, poor infrastructure and a lack of skills. Providing reliable, effective and efficient infrastructure underpins all attempts to facilitate trade, grow the economy and reduce poverty in Sub-Saharan Africa (SSA). SSA transportation related infrastructure is limited and generally in a poor condition. This poor state of transport infrastructure impedes SSA's development. However, it is not only the state of the infrastructure that challenges Africa - complicated customs and administrative procedures and inefficiencies when goods are handled at terminals and transferred from one transport mode to another also impede its potential for economic growth. In spite of these limitations, the SSA economy has been growing. As many as 28 countries (out of 48) in SSA recorded improvements in growth in 2006 and 2007. This growth was underpinned by improvement in macro-economic management in many countries, and a strong global demand for key African export commodities (sustaining high export prices, especially for crude oil, metals and minerals). Greater flows of capital to Africa, debt relief and increasing trade with the developing Asia have also helped increase resources and lift growth across SSA. The strong economic growth in the region also reflects the institutional improvements, structural reforms, and more rigorous economic policies that have started to bear fruit in many countries.
163

Tshwane logistics hub : an integration of freight transport infrastructure

Botha, Maria 12 1900 (has links)
Thesis (MComm (Logistics))--Stellenbosch University, 2008. / One of the results of globalisation is that supply chains are getting longer, in both time and distance. For example, the local bookstore around the corner now competes with the bookstore in the USA. Logistics ties together geographically distant sources and markets. The implications of this are that there is a greater need for efficiency in specifically transportation and distribution networks. The integration of transport infrastructure into a logistics hub is seen as an enabler of distribution on a global basis. A solution to overcome the above complications is the development of logistics hubs as a means to simplify supply chain processes. Logistics hubs are generally defined as integrated centres for transhipment, storage, collection and distribution of goods (Jorgenson, 2007). Universally logistics hubs have intermodal or multi-modal solutions to abridge transportation difficulties and creating seamless movement of goods and in doing so optimising general operations. Freight shipments now have the ability to be consolidated at a central point and distributed from that point to its final destination. This creates added value for freight products. Customers now receive products at the right time, at the right place and in the right quantity, but with the benefit of paying less as a result of economies of scale created by the value added at the logistics hub. Logistics hubs are very well established internationally and many examples exist where these have been successfully built and implemented. This does not suggest that there is one specific recipe to success. Each region has its own demands which need to be satisfied. There are however numerous common characteristics which were identified during the course of the study. It is important for South Africa to integrate existing transport infrastructure to optimise logistics in the country and in doing so, ascertaining itself as a regional logistics hub.
164

A feasibility assessment of Government's road-to-rail policy implementation : a freight logistics perspective

Rocha, Judite dos Santos 06 1900 (has links)
A severe capital shortage in South Africa during the 1980s resulted in significant losses for both freight and passenger rail, which gave rise to cutbacks in new investments for rail. By 1986 expenditure on fixed rail assets was reduced from R1.44 billion to R500 million; this was the beginning of the decline of freight rail. During this period freight transport was deregulated and road freight used this opportunity to compete with rail transport in the same market segment by transporting bulk goods on long hauls. The result of this was an increase in truck traffic on the roads, causing a negative impact on the conditions of the road and placing freight rail in a continuous decline, leading to the obsolete state of the rail infrastructure, rolling stock and its under-utilisation. This had a detrimental impact on freight rail and the economy. Having realised the extent of the problem, government, through the Department of Transport (DoT), decided to intervene by changing the current model of the freight transport system. To that effect the DoT is in the process of developing a National Rail Policy, with the main focus being to encourage the shift of freight transportation of bulk commodities from road to rail. As the National Rail Agency, Transnet undertakes all South Africa‟s freight rail operations through its Transnet Freight Rail (TFR) division. As such, TFR is ultimately responsible for the implementation of the road to rail implementation project. To that effect, TFR developed the MDS to revitalise itself and ensure its success. The objective of this research is to (a) assess the capacity of TFR to successfully implement the road to rail policy; (b) determine whether the implementation of road to rail will lead to freight rail efficiency and competitiveness, reliability and sustainability; and (c) establish the industry‟s reaction towards the shift from road to rail. In order to respond to the research question, qualitative research was chosen as the most appropriate approach. This facilitated an in-depth exploration and understanding of the issues around the road to rail project including how the industry feels about the issue, as well as an exploration of other possible alternatives which could provide the same or better results in a simpler and more effective manner. This research may serve as additional information for authorities to consider during the implementation of the road to rail project, and could render a better chance of success. Upon completion of this research the author concluded that Transnet Freight Rail has a good chance of success. The implementation of road to rail is being given adequate attention. Integration is possible as the industry welcomes and supports the road to rail programme, in fact a number of collaboration agreements already exist between rail and other transport modes. This will enable Transnet Freight Rail to achieve efficiency, sustainability and a competitive advantage within the seven year timeframe of the MDS. / Graduate School of Business Leadership (SBL) / M. B. A. (Business Leadership)
165

A multi-agent based system to promote collaboration among Namibian transport stakeholders in order to reduce empty runs

Fransman, Logan 03 July 2015 (has links)
The main aim of transport stakeholders has always been to transport freight efficiently, as this efficiency contributes to the growth and success of their business. A country like Namibia is no different as the efficiency of transport lies in the effective utilisation of carrier capacity in any direction. Due to the various types of freight, transport operators rarely have the capacity to cover all freight movement requests. This research put the empty runs experienced by most of the Namibian transporters at 33%. Empty runs could however be reduced through collaboration and sharing of capacity among transport stakeholders. Multi-agent systems (MAS) are various individual computer agents that are configured independently to interact with other agents to achieve one goal. These systems have been explored as an approach to achieve collaboration among transporter stakeholders. Taking into consideration the characteristics and requirements of MAS, this research was able to conduct a feasibility of its implementation within Namibia. Concluding with an evaluation of available Multi-agent based systems that could achieve collaboration and reduce empty runs in the Namibian transport environment. / Information Science / M. Tech. (Information Technology)

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