A Study of V2V Communication on VANET: Characteristic, Challenges and Research Trends

Vehicle to Vehicle (V2V) communication is a specific type of communication on Vehicular Ad Hoc Network (VANET)  that attracts the great interest of researchers, industries, and government attention in due to its essential application to improve safety driving purposes for the next generation of vehicles. Our paper is a systematic study of V2V communication in VANET that cover the particular research issue, and trends from the recent works of literature. We begin the article with a brief V2V communication concept and the V2V application to safety purposes and non-safety purposes; then, we analyze several problems of V2V communication for VANET related to safety issues and non-safety issues. Next, we provide the trends of the V2V communication application for VANET. Finally, provide SWOT analysis as a discussion to identify opportunities and challenges of V2V communication for VANET in the future. The paper does not include a technical explanation. Still, the article describes the general perspective of VANET to the reader, especially for the beginner reader, who intends to learn about the topic

Customer relationship value in the business-to-business railway market of Southern Africa

This study involves establishing imperative customer relationship value antecedents and mediators within the business-to-business (B2B) railway industry of Southern Africa and determining whether these relationship value antecedents and mediators will achieve customer retention as an outcome. The goal is to create a conceptual model for the B2B railway industry of Southern Africa, which will be done through reviewing well-established theories and past literature on the topics of relationship marketing, relationship value, and retention within the B2B industry. After an examination of the existing literature, a proposed conceptual model will be developed and tested using confirmatory factor analysis (CFA) with a sample of 265 B2B supplier companies operating in the Southern African railway market. The CFA represents the measurement model of this research, which proposes the relationship value antecedents, mediators, and their influence on retention within the B2B railway industry of Southern Africa. Secondly, structural equation modelling (SEM) will be conducted, in order to test relation-ships with latent factors. The results indicate that the factors of service, supplier, relational, and financial performance are important antecedents, and that satisfaction and relationship value are significant mediators of customer retention in the B2B railway industry of Southern Africa.Business ManagementD. Admin. (Business Management

Lowering Transport Costs and Prices by Competition: Regulatory and Institutional Reforms in Low Income Countries

High passenger and freight transport costs are a barrier to economic growth and social mobility, particularly in Low Income Countries (LICs). This paper considers the current state of knowledge regarding the barriers to achieving lower generalised transport costs. It considers both the road and railway modes across passenger and freight transport. These issues include a reform on the regulations for driver hours (preventing the road infrastructure from overloading), structuring rail concessions, increasing competition, and tackling corruption. Such reforms aim to deliver efficiency gains and service quality improvements at lower costs for users. This paper identifies the knowledge gap in previous research and concludes by setting out a research agenda that builds the evidence base for how the best practices from around the world can best be applied to the specific circumstances in Low Income Countries, with a particular focus on Sub-Saharan Africa and South Asi

Intelligent transport systems as generators of built form: towards the design of a transport interchange in Harare, Zimbabwe.

Master’s degree. University of KwaZulu-Natal, Durban.Rapid urbanisation in the last century resulted in a more urban population although some countries and continents still have higher rural population. It is estimated that by the year 2050 more than 75% of the world‟s population will be living in urban areas (WB, 2013; OECD, 2015). Most of this increase in global urbanisation is forecast to take place in the emerging, developing and less developed, or third world Africa, Asia and South America (Pojani & Stead, 2015). Transport plays a critically important role within urban areas in ensuring that urban dwellers gain access to resources and socioeconomic opportunities. The transport systems in most urbanized and urbanizing areas of developing nations are largely unsustainable and cause numerous problems that directly affect the quality of social, economic and environmental urban systems. With limited access to financial capital and strong institutional structures these nations struggle to develop their urban infrastructures to keep up with the increasing human populations and demands of safe, reliable and sustainable transportation services. The information and communications technology (ICT) sector has recorded unprecedented growth in Africa over the last decade. In Zimbabwe, for example, telecommunications technology, in the form of an electronic mobile payment system, has enabled the sustainable growth of the informal economy by creating a cashless society. The system has enabled the poorest of citizens access to financial and credit facilities and helped them start up and run profitable small businesses (www.econetwireless.com). It provided a sustainable solution for managing the financial crisis in the country. With more than 75% of the population now owning mobile telephones and wireless devices technologies like the payment systems can be used to improve other sectors of the economy currently under stress and strain. This research study intends to investigate the use of advanced transport systems and technologies in improving transport in the major urban centers of Zimbabwe. The study will investigate intelligent transport systems as tools of improving urban transport and how their operational and functional requirements can be used by design professional to create sustainable and meaningful urban built form

Opportunities for short-sea shipping in the Southern African Development Community (SADC) region: evidence based on discrete choice modelling

The thesis investigates the development of short-sea shipping (SSS) in the Southern African Development Community (SADC) region by studying the determinants of SSS, the stated choice preference of shippers and freight forwarders and the stated intentions of maritime carriers for SSS. It is purported the introduction of SSS in SADC could reduce socio-environmental problems currently faced such as road damage, road congestion, pollution and transport related accidents. Discrete choice modeling (DCM) is employed as the main methodology to study shipper and carrier behavior. Discrete choice modeling permits the construction of general utility functions incorporating various decision maker characteristics and choice attributes to elicit preference of respondents. The general postulate in DCM is that utility is derived from the properties of things rather than the actual thing per se. A particular benefit of DCM in this study is the elicitation of preference for services and interventions that have not been introduced by SSS. The first step in the study is a theoretical investigation of the potential of SSS in the SADC region. It highlights the policy initiatives, the barriers and enablers related to the development of SSS. The proposed SSS system would have three main roles: to offer an alternative mode of freight transport service between port cities, to serve as the main leg in an intermodal transport network, and to serve feeder services between hub-and-spoke ports. The findings reveal that, SSS has the theoretical potential to work in the SADC region, given the large geographic region, projected freight volumes and customs and trade policies the SADC region is pursuing. The second step in the study involves an a-priori study conducted to develop a general understanding of freight transport in SADC. For this purpose, a uniquely developed online survey was conducted across the SADC region to ascertain in particular: who the decision maker is in terms of freight mode choice; and what the significant attributes that influence freight mode choice are. The results reveal that both the shipper and the freight forwarder are involved in mode choice decisions, however the shipper being the dominant decision maker. Furthermore, the results of the exploded logit model reveal that the top five modal attributes that shippers consider most important are: reliability, transport cost, risk of damage, frequency of service and transit time. These results were subsequently employed to inform the shipper and carrier behavior studies. The third step entails the assessment of shipper behavior, where trip specific mode choice decisions are studied along five intra-urban origin-destination (O-D) paired routes (which would form the study corridors). Three of these corridors considered unimodal SSS, and the two considered intermodal SSS. Unimodal SSS was studied along the following corridors: Cape Town (South Africa)~ Walvis Bay (Namibia), Walvis Bay (Namibia) ~ Luanda (Angola) and Durban (South Africa) ~Beira (Mozambique); and intermodal SSS was studied along the following corridors: Durban (South Africa) ~ Harare (Zimbabwe) and Cape Town (South Africa) ~ Windhoek (Namibia). To develop the choice scenarios, d-efficient stated choice experiments were uniquely developed for each of the corridors with the following key modal attributes systematically varied and analyzed across respondents: service frequency, reliability in terms of arriving on time, expected delay, transport cost and transport time. Subsequently, the following choice models were developed: Binary Logit, Mixed Logit and Integrated Choice and Latent Variable Structure models for the unimodal corridors; and Multinomial Logit, Nested Logit and Cross Nested Logit models for the intermodal corridors. The results highlight that in addition to the modal attributes, mode choice decisions are driven by shipper characteristics and situational characteristics. Moreover, the unimodal SSS study reveals that underlying latent perceptions also influence freight mode choice decisions; while the intermodal SSS study reveal strong correlations in the intermodal SSS alternatives, which requires improved intermodal capability if SSS is to become competitive. The fourth step in the study entail the assessment of maritime carriers preference for SSS given varying levels of maritime conditions that include: dedicated freight volumes, income from freight, port dues discount, terminal handling fees discount and ship registration requirements. The results of an ordered logit model reveal that ship registration provisions and terminal handling charges are the most important to the development of SSS from a carrier side. Moreover, ship registration and maritime cabotage provisions require visitation to boost the participation of carriers in SSS. The last step of the study revisits the modeling results and considers their implications through the estimation of willingness-to-pay and attribute elasticities. The results were then employed to suggest policy actions and interventions to develop SSS

The state of rural transport research in South Africa - gauging the policy shifts : 1994 - 2014

This paper explores the state of rural transport research in South Africa covering the period 1994 -2014 with a particular focus on gauging the policy shift. The sustainable development theoretical framework is employed as the over-arching analytical tool. The paper draws from an extensive desktop literature review of rural transport policy research output accessible in the public domain covering the twenty year period. The main findings confirm a discernible transport paradigm shift underpinned by contestations regarding rural transportation policy planning and implementation. The paper also discusses rural transport research blind-spots and opportunities for valorizing the research output for the benefit of rural communities across the country.Paper presented at the 34th Annual Southern African Transport Conference 6-9 July 2015 "Working Together to Deliver - Sakha Sonke", CSIR International Convention Centre, Pretoria, South Africa.The Minister of Transport, South AfricaTransportation Research Board of the US

Assessment of needs and feasibility of commercial production of tropical fruits and vegetables for diversified exports in Ethiopia and Sudan

Diversification into the production and export of horticultural crops is a strategy increasingly adopted by developing countries to enhance incomes, employment and foreign exchange earnings. However, a relatively small number of countries dominate exports of horticultural products from Sub-Saharan Africa and for most African countries the horticulture export sector has remained very small and/or has experienced severe bottlenecks to expansion. The Common Fund for Commodities (CFC) is financing projects to assist Least Developed Countries in the diversification of their commodity exports. As part of this programme, the CFC is funding this pilot project in Ethiopia and the Sudan to assess the needs and feasibility of developing commercial production of high value tropical fruit and vegetable products based on these countries' comparative advantage. The purpose of this report is to identify and prioritise the various capacity building measures that need to be devised and developed to overcome these constraints and thus facilitate an expansion of fruit and vegetable exports. The aim is to advise the relevant international and national institutions on modalities to adopt in order to strengthen the existing horticultural strategy in Ethiopia and Sudan and thus reduce poverty while enhancing the livelihood benefits accruing. The report has five chapters. The first is an introduction, while aspects of horticultural production and trade in Ethiopia and Sudan are discussed in Chapters 2 and 3 respectively. Chapter 4 reviews the international market situation looking specifically at European Union and Middle East markets. Chapter 5 contains conclusions and recommendations of the study. In addition, there are 7 Annexes, covering methodology, contacts and itinerary, workshops in Sudan and Ethiopia, detailed production and trade data, and materials consulted