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The empty railcars repositioning strategy generates no income but is crucial for a good service quality, it should then satisfy two main objectives: fullling the customer demand and generating as little expense as possible. Moreover, because of breakdown or heavy traffic, variation on travel times happens to be the main cause of uncertainty in railroad scheduling and must be taken into account to suggest a robust planning. This thesis presents the linear program used in a prototype tool for the optimization of empty railcar repositioning strategy designed for the SNCF¹. The resulting schedule is computed with CPLEX and minimizes moving cost, delay and unfulllment penalties. Substitutions of railcar categories are also permitted and eventually penalized. In addition, uncertainty on travel times is handled by considering the expected cost of a move (regarding delay probability and possible penalties) and by adding slack periods at the end of moves. The robustness can be modulated through the use of a cursor. Finally, the model enforces a decision making process previously dened by the SNCF to ensure that the suggested planning can be easily grasped and trusted by users. Schedules have then been generated based on randomly generated data and simulated. Results show a potential saves of 10% on considered costs and a good range of use of the robustness cursor is suggested. Finally, paths for improvement of this prototype are proposed to meet the eventual schedulers' further needs in order to move forward the production of this tool at the company scale. ¹Société Nationale des Chemins de fer Français (French National Railways) / Master of Science

Rail transport refers to the transportation of various commodities, goods and services traded as cargo and freight within South Africa and out of South Africa for export to the other Southern African communities (SADC region), the rest of Africa and other continents of the world. It also refers to the imports into South Africa from the regions mentioned. Competitiveness relates to a country or company’s available resources and supporting policies and regulations in place which allow them to compete and do business locally, internationally and globally while improving the country’s economy and the company’s profitability. There are different criteria that can be used to determine the level of competitiveness, depending on each company or country’s capabilities. In the past years, the progress and development of the South African rail industry has been neglected and this has resulted in the rail transportation not being used. Railway line maintenance has become a challenge and service delivery is below customer expectations. Road transport has better availability and reliability, which has led companies to prefer road transport for freight. The main objective of this study is to reach a detailed understanding of the views of freight rail transport consumers and the impact of rail transport on the economic competitiveness of South Africa. Another important objective is to present the study in a format that is easily understandable. The approach adopted for this study is quantitative and uses a survey research questionnaire which was distributed to freight rail transport customers and providers. The data collected from the questionnaire was submitted to a statistical consultant service at North-West University. The statistical consultant analysed the data using the SPSS statistics computer programme to arrive at the results presented in this study. The overall findings from this study are that companies that use roads to transport freight do so because of the unavailability and unreliability of the freight rail transport provider Transnet Freight Rail and that these companies opt for road transport because they use a ‘just in time’ (JIT) system whereby a small quantity of stock is transported continuously which Transnet Freight Rail (TFR) does not accommodate. These factors have resulted in TFR’s poor service delivery. Therefore, a market demand strategy has been initiated by TFR to improve the performance of the company. It is important to note here that freight rail transport should concentrate on improving service delivery and not only on increasing capacity. The research participants indicated that the TFR objective to move freight back to rail could be accomplished. This will lessen the burden and damage to South African roads and reduce traffic congestion and accidents caused by trucks on the roads. It will also increase employment opportunities and the country’s economic competitiveness while reducing transport costs. All these aspects will make a significant impact on the economy of the country. / MBA, North-West University, Potchefstroom Campus, 2015

Rail transport refers to the transportation of various commodities, goods and services traded as cargo and freight within South Africa and out of South Africa for export to the other Southern African communities (SADC region), the rest of Africa and other continents of the world. It also refers to the imports into South Africa from the regions mentioned. Competitiveness relates to a country or company’s available resources and supporting policies and regulations in place which allow them to compete and do business locally, internationally and globally while improving the country’s economy and the company’s profitability. There are different criteria that can be used to determine the level of competitiveness, depending on each company or country’s capabilities. In the past years, the progress and development of the South African rail industry has been neglected and this has resulted in the rail transportation not being used. Railway line maintenance has become a challenge and service delivery is below customer expectations. Road transport has better availability and reliability, which has led companies to prefer road transport for freight. The main objective of this study is to reach a detailed understanding of the views of freight rail transport consumers and the impact of rail transport on the economic competitiveness of South Africa. Another important objective is to present the study in a format that is easily understandable. The approach adopted for this study is quantitative and uses a survey research questionnaire which was distributed to freight rail transport customers and providers. The data collected from the questionnaire was submitted to a statistical consultant service at North-West University. The statistical consultant analysed the data using the SPSS statistics computer programme to arrive at the results presented in this study. The overall findings from this study are that companies that use roads to transport freight do so because of the unavailability and unreliability of the freight rail transport provider Transnet Freight Rail and that these companies opt for road transport because they use a ‘just in time’ (JIT) system whereby a small quantity of stock is transported continuously which Transnet Freight Rail (TFR) does not accommodate. These factors have resulted in TFR’s poor service delivery. Therefore, a market demand strategy has been initiated by TFR to improve the performance of the company. It is important to note here that freight rail transport should concentrate on improving service delivery and not only on increasing capacity. The research participants indicated that the TFR objective to move freight back to rail could be accomplished. This will lessen the burden and damage to South African roads and reduce traffic congestion and accidents caused by trucks on the roads. It will also increase employment opportunities and the country’s economic competitiveness while reducing transport costs. All these aspects will make a significant impact on the economy of the country. / MBA, North-West University, Potchefstroom Campus, 2015

published_or_final_version / Transport Studies / Master / Master of Arts

published_or_final_version / Urban Planning / Master / Master of Science in Urban Planning

This study will help better our understanding of the import-export processes in the U.S. It examines the challenges faced by US exporters and importers, and investigates an innovative solution to tackle these challenges. The dry port concept introduced by transportation geographers is discussed, and an intermodal rail costing model is used in determining whether this concept will prove to be a more sustainable and energy efficient system than what currently exists. / text

Freight transportation is an integral element of various supply chains and has a complex and dynamical interrelationship with human economic activities. Modern logistical strategies paved way to the current supply chain organisation and logistics network design resulting in a more global economy and huge economies of scale. Recent trends of volatility of oil price have major implications in the movement of commodities across the supply chains. Likewise, climate change issues have presented urgent challenges in reducing carbon emissions for the transport and logistics sector. Pressure on the sector comes from both governments and consumers alike, demanding future sustainability as well as corporate environmental and social responsibility. The original contribution of this research is to investigate the system-wide dynamics of freight transportation and production in the context of supply chains. A theoretical framework called the ‘Geographic Adaptive Potential’ or GAP is built to understand how constraints in energy and emissions affect the production and distribution of commodities. The changes in the supply chain were investigated in four different components, namely a) the potential to shift to less energy and emissions intensive modes for long-haul freight, b) logistical strategies in the last leg of the chain or urban freight and c) local production and distribution, and d) the accessibility of potential customers to the markets. The design of the GAP components is in correspondence with the links of the supply chain. The analyses yielded an evaluation of the adaptive capacity of the freight transport and production system. For long-haul freight, a GIS-based model was created called the ‘New Zealand Intermodal Freight Network’ or NZIFN. It is an optimisation tool integrating the road, rail and shipping network of New Zealand and calculates that minimum time, operating costs, energy and emissions routes between 2 given locations. The case studies of Auckland to Wellington and Auckland to Christchurch distributions of non-perishable products established that even a marginal increase of rail and coastal shipping share produced around 10% reduction in both freight energy and greenhouse gas emissions. In the study of the last leg of the supply chain, the truck trip generation rates of different food stores were investigated. The strongest factors influencing the trip rates to a store are its size and product variation, the latter being a new parameter introduced in the dissertation. It is defined as the total number of brands for 6 chosen commodities commonly found in the stores. The trip rates together with the truck type and distance travelled were used to compute the freight energy usage of the stores. Results revealed that supermarkets consume the most energy for their delivery operations but relative to its physical size, they are more energy efficient than smaller stores. This is due to the utilisation of advanced logistical strategies such as freight consolidation and the effective use of distribution centres. The localised production chapter was explored in the context of Farmers’ markets and their difference with the conventional supermarket distribution system. Using a freight transport energy audit, the energy intensities of both systems were compared. The findings showed that Farmers’ markets were more energy-intensive than supermarkets owing to the low volumes of goods delivered to the market and the lack of freight consolidation effort in the system. The study on the active mode access of potential customers to both Farmers’ markets and supermarkets captured the interplay between freight and personal transport and is the final component of GAP. The results of the ArcGIS based model called ‘Active Mode Access’ or AMA demonstrated that both Farmers’ markets and supermarkets have the same level of accessibility for walking or biking customers. However, the calculations also showed that almost 87% of New Zealanders have no AMA to stores and are at risk for fuel price increase. Finally, the key result of this dissertation is the assessment that there is actually limited adaptive capacity of the freight transport and production system. This is due to network infrastructure and geographical constraints as well as commodity type and mode compatibility and other operational concerns. Due to these limitations, the GAP model assessed that reduction in energy and allowable emissions will ultimately reduce the amount of commodities moved in the system.

Freight Forwarding The content of this thesis is a treatise on the issue of freight forwarding contract conclusion as well as on the topic of freight forwarding in general, namely in the context of Czech laws together with the laws of Germany and Austria. The thesis is divided into five chapters, whereas the author emphasizes, besides the comparison of the current and the previous legislations the clarification of basic terms of the law of transport and conceives the text as an elementary insight into an often overlooked issue. Demonstrated on the historical context, outlined in chapter two of the thesis, is the rather dynamic evolution of the branch as well as the set back of its promising beginnings in our countries caused by the installment of the totalitarian regime in the late 40s of the last century. Prevailing in the following legislative excursion, contained in the third chapter, is beside the aforementioned comparison, a pure analysis of the rights and obligations of the forwarding contract parties, means of their securing as well as of the alternative liability regimes, when included is also a brief description of the related types of contracts and the model transport documents used in the freight forwarding business branch. The fourth chapter consists mainly of an analysis of the legal...