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A model for the systemic design of railway systems for dedicated rail freight in Southern Africa
Thesis (PhD)--Stellenbosch University, 2024.
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| Format: | Thesis |
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Stellenbosch : Stellenbosch University
2025
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| _version_ | 1867614087301562368 |
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| access_status_str | Open Access |
| author | Mulke, Friedrich Johannes |
| author2 | Havenga, Jan H. |
| author_browse | Havenga, Jan H. Mulke, Friedrich Johannes |
| author_facet | Havenga, Jan H. Mulke, Friedrich Johannes |
| author_sort | Mulke, Friedrich Johannes |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description |
Thesis (PhD)--Stellenbosch University, 2024. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/131849 |
| institution | Stellenbosch University (South Africa) |
| last_indexed | 2026-06-10T12:46:27.621Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/131849 A model for the systemic design of railway systems for dedicated rail freight in Southern Africa Mulke, Friedrich Johannes Havenga, Jan H. Van Eeden, Joubert Stellenbosch University. Faculty of Engineering. Dept. of Industrial Engineering. Railroads -- Freight -- Southern Africa Transportation engineering -- Southern Africa Infrastructure (Economics)—Planning UCTD Thesis (PhD)--Stellenbosch University, 2024. ENGLISH ABSTRACT: The Research Problem entailed developing a Design Model capable of determining the interrelatedness of rail infrastructure and Rolling Stock, driven by Demand (tonnes per annum) for Rail services and creating commercial value expressed as the Internal Rate of Return. The Research Goal of this Doctoral Dissertation was to compile and calibrate a Design Model for the Systemic Project Design Process of new greenfield dedicated rail freight Railway Systems. It will enable design engineers to determine a Trade-Off Analysis during the early optioneering phase and a portion of the Feasibility Phase of a new railway project. The development of a Design Model to compute the interrelated relationship between the Rail Infrastructure and Rolling Stock haulage Sub-Systems will assist the railway design process in determining the financial viability of a railway project. A unique characteristic of the Design Model is its inclusion of research results from a simulation program concerning the effect of systemic efficiencies on train operations performance. Applying the corrective factors derived from the simulation results to Train Haulage Operations will inform the layout designs of Rail Infrastructure. The Design Model will inform Production Factor capacities as the Demand increases and deliver valuable results regarding the Tariffs and project IRR. This can be achieved during design decisions and is a unique attribute of the Design Model. The unique characteristic of the Design Model was illustrated in the quantification of the Capital investment of the volumetric Earthworks’ configurations and its trading off against the linear train hauling variable cost. The Project Development Life Cycle costing using the Design Model is an important facet that will address the Sustaining Capacity requirements due to Maintenance interventions and their effect on the Remaining Useful Life and project IRR. Determining the impact of Systemic Operating Efficiency on train operations and the resultant variation in the production Factors (e.g., increases in Rolling Stock fleet size) is considered an essential contribution to applying the Design Model. A unique characteristic of the Design Model is quantifying the design case's economies and dis-economies of scale. Compiling a project's Long-run Average Cost Curve will result in more realistic rail Tariffs and IRR values. The contribution of applying the Design Model to a design case is demonstrated using the financial results, which will ensure that the accuracy of the viability of railway projects can be valued closer to its final value at an earlier phase of project development. AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar. Doctoral 2025-04-03T07:24:18Z 2025-04-03T07:24:18Z 2024-12 Thesis https://scholar.sun.ac.za/handle/10019.1/131849 Stellenbosch University xxx, 325 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Railroads -- Freight -- Southern Africa Transportation engineering -- Southern Africa Infrastructure (Economics)—Planning UCTD Mulke, Friedrich Johannes A model for the systemic design of railway systems for dedicated rail freight in Southern Africa |
| title | A model for the systemic design of railway systems for dedicated rail freight in Southern Africa |
| title_full | A model for the systemic design of railway systems for dedicated rail freight in Southern Africa |
| title_fullStr | A model for the systemic design of railway systems for dedicated rail freight in Southern Africa |
| title_full_unstemmed | A model for the systemic design of railway systems for dedicated rail freight in Southern Africa |
| title_short | A model for the systemic design of railway systems for dedicated rail freight in Southern Africa |
| title_sort | model for the systemic design of railway systems for dedicated rail freight in southern africa |
| topic | Railroads -- Freight -- Southern Africa Transportation engineering -- Southern Africa Infrastructure (Economics)—Planning UCTD |
| url | https://scholar.sun.ac.za/handle/10019.1/131849 |
| work_keys_str_mv | AT mulkefriedrichjohannes amodelforthesystemicdesignofrailwaysystemsfordedicatedrailfreightinsouthernafrica AT mulkefriedrichjohannes modelforthesystemicdesignofrailwaysystemsfordedicatedrailfreightinsouthernafrica |