Student Number : 8910202A - MPH research report - School of Public Health - Faculty of Health Sciences / An increasing number of people are migrating to South African urban centers (GJMC, 2000). There are various reasons that can be attributed to this migration; including the hope of finding employment and better living conditions. Recent urban migrants find themselves faced with the basic problem of lack of shelter and, depending on the migrant’s situation, they may choose to live in indoor shacks within the city center, backyard shacks in the black townships or join the growing number of informal settlement dwellers (GJMC, 2000). The number of informal settlements continues to grow at an alarming rate in Johannesburg (CEROI, 2000). This poses unique health care challenges as well as presenting the health care system with unusual disease conditions associated with general lack of infrastructure and services (CEROI, 2000). It has been established that the proportion of HIV infected patients is higher in people living in informal settlements when compared to people living in private houses (SAHR, 2000). Thus, it is expected that more people will be presenting with HIV and AIDS related illnesses in an informal settlement health center as compared to well-developed residential areas. This study aimed at exploring the prescribing patterns of health care givers for patients attending a health center in an informal settlement as well as to determine the major disease patterns prevalent in the area. The study was carried out in Davidsonville and OR Tambo clinics as well as Bophelong and Hikhensile clinics in Ivory Park. The study covered regions five, one and two respectively according to Gauteng metropolitan services area classification (GJMC, 2000). The findings of the study will help the appropriate policy makers improve the Essential Drug List and inform public health officials in formulating strategies that may lead to health status improvement for people living in informal settlements.

Since the early 1960s the government of the Kingdom of Saudi Arabia (KSA) has had several urban development strategies that have been designed to spearhead development through the deployment of internationally recognised architects and urban planners. The adoption of this strategy has opened debate on the paradigm shift away from restrictive planning regulations at both national and regional levels. The process has enabled foreign policies and ideas based on internationalisation to drive the new urban centre developments in Saudi cities including Riyadh and Dammam. In 2008, this key shift saw the traditional restrictive urban development strategies, which prescribed – among other things – the number of storeys a building could have, being replaced by a strategy permitting an unlimited number of storeys. This dissertation examines the role played by international firms of architects and developers in shaping how architecture is practised in the Kingdom. The process has led to the adoption of modern architectural styles and has advanced a modernised planning approach, whereby traditional architectural structures and the use of local materials have gradually been replaced by modern styles, high-tech buildings and the use of new foreign materials, causing the loss of historic buildings throughout the country. This is seen by many to constitute an injury to national culture and could lead to cultural conflicts that may be exacerbated by the possible importation of planning principles and regulations. A chronological review of internationalisation and how international architectural practices have been mobilised to work in the KSA reveals the impact of this process on the Kingdom’s urban development. While this may be desired by the authorities, it has been argued that the process does not seem to provide any clear strategy for the implementation of the desired sustainable urban centre development in the KSA. Hence, in the absence of clear directives, international architectural firms operate their own set of sustainability criteria to deliver the desired urban centres in the Kingdom. There has been little or no research into the mobilisation of international firms and foreign policies, nor into the impact of internationalisation on the development of planning codes, the modernisation of urban centres and the sustainability approach espoused by the KSA’s planning development strategy. This study investigates the impact of the participation of international firms in Saudi Arabia’s urban development. Government planning regulations and master plans are reviewed and a case study is conducted to identify the factors behind the engagement of international firms in the delivery of two capital projects: the King Abdullah Financial District in Riyadh and the Central Business District in Dammam. The study also explores the concept of sustainability and the engagement of foreign firms from the perspectives of various stakeholders through face-to-face interviews and a structured questionnaire. It establishes how the role of internationalisation as a driver of policy mobility has impacted on the new sustainable urban centres and in addition, how internationalisation has been operationalised through the notion of sustainability. Although planning codes and regulations may have been developed with good intent by the international firms concerned, their implementation has not yielded the desired result of delivering sustainable urban centres in the KSA. Thus, there is a conflict between a rapid urban development which seeks to integrate historical and traditional contexts on one hand, and the continual import and impact of globalised morphologies on the other. This leads to clear demarcations in urban evolution, making this conflict one of the key characteristics of emerging urban centres in the KSA.

The Canterbury region of New Zealand experienced four earthquakes greater than MW 6.0 between September 2010 and December 2011. This study employs system dynamics as well as hazard, recovery and organisational literature and brings together data collected via surveys, case studies and interviews with organisations affected by the earthquakes. This is to show how systemic interactions and interdependencies within and between industry and geographic sectors affect their recovery post-disaster. The industry sectors in the study are: construction for its role in the rebuild, information and communication technology which is a regional high-growth industry, trucking for logistics, critical infrastructure, fast moving consumer goods (e.g. supermarkets) and hospitality to track recovery through non-discretionary and discretionary spend respectively. Also in the study are three urban centres including the region’s largest Central Business District, which has been inaccessible since the earthquake of 22 February 2011 to the time of writing in February 2013. This work also highlights how earthquake effects propagated between sectors and how sectors collaborated to mitigate difficulties such as product demand instability. Other interacting factors are identified that influence the recovery trajectories of the different industry sectors. These are resource availability, insurance payments, aid from central government, and timely and quality recovery information. This work demonstrates that in recovering from disaster it is crucial for organisations to identify what interacting factors could affect their operations. Also of importance are efforts to reduce the organisation’s vulnerability and increase their resilience to future crises and in day-to-day operations. Lastly, the multi-disciplinary approach to understanding the recovery and resilience of organisations and industry sectors after disaster, leads to a better understanding of effects as well as more effective recovery policy.

Geographic space is not neutral or lifeless, but an intricate living structure composed of numerous small features and a few large ones across all scales. The living structure is crucial for comprehending how geographic space shapes human activities. With the emerging geospatial big data, researchers now have unprecedented opportunities to study the relationship between geographic space and human behaviour at a finer spatial resolution. This thesis leverages multisource geospatial big data, including Twitter check-in locations, street networks from OpenStreetMap, building footprints, and night-time light images, to explore the fundamental mechanisms of human activities that underlie geographic space. To overcome the limitations of conventional analytics in this era of big data, we propose the topological representation and living structure based on Christopher Alexander's conception of space. We utilize scaling and topological analyses to reveal the underlying living structure of geographic space with various big datasets. Our results demonstrate that tweet locations or human activities at different scales can be accurately predicted by the underlying living structure of street nodes. We also capture and characterize human activities using big data and find that building footprints and tweets show similar scaling patterns in terms of sizes of their spatial clusters. We also propose an improved spatial clustering method to increase the processing speed of geospatial big data. Finally, we adopt topological representation to identify urban centres by the fusion of multi-source geospatial big data. The living structure, together with its topological representation can help us better understand human activities patterns in the geographic space at both city and country levels.