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Browsing Conference Publications by Author "Le Roux, Alize"

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Advances in geospatial analysis platforms and tools: Creating space for differentiated policy and investment responses

Author: Maritz, Johan ; Le Roux, Alize ; Van Huyssteen, Elsona ; Coetzee, M ; Mans, Gerbrand G ; Goss, H Date: Sep 2010 Over the last 5 years a set of incremental advances within geospatial analysis platforms and tools developed by the CSIR's Planning Support Systems in collaboration with key stakeholders such as The Presidency, enabled a more nuanced regional ... Read more
Analysing risk and vulnerability of South African settlements: Attempts, explorations and reflections

Author: Faling, W ; Van Huyssteen, Elsona ; Le Roux, Alize Date: Oct 2012 This is a presentation paper on the development of multi-criteria indicators for integrated assessment of socio-economic vulnerability at a regional level. An indication is provided of some first steps in interpreting projections for environmental ... Read more
Are we achieving spatial transformation In South Africa? Can sub-city spatial indicators make a contribution?

Author: Maritz, Johan ; Van Huyssteen, Elsona ; Le Roux, Alize ; Pieterse, Amy ; Ndaba, Dumisani ; Mans, Gerbrand G ; Ngidi, Mawande Date: Jun 2016 With the advent of a democratic order in South Africa in 1994 a number of policy frameworks have seen the light. All of these have indicated the need to spatially transform cities and settlements – to break from the pre-1994 apartheid city. ... Read more
Backyard housing in Gauteng: an analysis of spatial dynamics

Author: Shapurjee, Y ; Le Roux, Alize ; Coetzee, M Date: May 2014 This article examines the phenomenon of backyard housing in Gauteng, a prominent driver of urban spatial change in South Africa’s housing market. Backyard housing in South Africa increasingly attracts the attention of policymakers because of ... Read more
Climate change adaptation in the African roads sector: Constraints, opportunities and policy challenges

Author: Maritz, Johan ; Arnold, Kathryn A ; Roux, Michael P ; Le Roux, Alize ; Verhaeghe, Benoit MJA Date: Oct 2019 Roads play a vital role in strengthening the socio-economic development of regions in sub-Saharan Africa by providing local communities with critical connections between essential market points, service towns and infrastructure. To enhance ... Read more
Creating a high resolution social vulnerability map in support of national decision makers in South Africa

Author: Le Roux, Alize ; Khuluse, S ; Naude, AJS Date: Aug 2015 The core objective of this study was to create a social vulnerability map based on generally accepted variables that are indicative of drivers of social vulnerability, capturing the unique attributes of South African communities. The paper ... Read more
Developing spatial indicators using a uniform tessellation to measure urban transformation

Author: Maritz, Johan ; Le Roux, Alize ; Mans, Gerbrand G Date: Jul 2017 South Africa’s largest cities are subjected to high rates of urbanization with a projected 8 million people migrating to these urban spaces by 2030 [ 1]. Managing and guiding this growth is made more difficult due to the countries ‘apartheid ... Read more
Embedment of climatic effects in the road asset management process

Author: Roux, Michael P ; Verhaeghe, Benoit MJA ; Maritz, Johan ; Arnold, Kathryn A ; Le Roux, Alize Date: Oct 2019 The United Nations Environmental Programme describes the African continent as a ‘vulnerability hotspot’ for climate change. During the past four decades African countries have experienced more than 1 500 recorded weather-related disasters. ... Read more
A geospatial modelling approach to simulating the impact of future planning policies on the City of Tshwane

Author: Ludick, C ; Le Roux, Alize Date: Sep 2018 Many researchers believe that no matter what path a country takes towards economic development the end result will lead to urbanisation. Rapid urban growth will have a major influence on the social, economic and political dialogue over the ... Read more
Housing / Human Settlements Atlas series: continued support towards more sustainable human settlements

Author: Goss, H ; Busgeeth, K ; Le Roux, Alize Date: 01 Sep 2010 The National Department of Human Settlements has contracted the CSIR Built Environment Unit in the development of the Human Settlements Atlas (previously Housing Atlas) series. The overall aim of the series is to provide a spatial interpretation ... Read more
Implementing a GIS based methodology for determining highly vulnerable rural access roads to a changing climate in Ethiopia

Author: Arnold, Kathryn A ; Le Roux, Alize ; Makhanya, Sibusisiwe A Date: Sep 2018 Climate-related natural disasters have been steadily increasing in both incidence and intensity across the globe over the last century. This is especially true for Ethiopia given the country’s high and recurrent exposure to extreme droughts ... Read more
Implementing land use change models in the developing world

Author: Le Roux, Alize Date: Jul 2013 It is difficult for policy and decision makers to observe and quantify the implications of their land use policies and strategies and what it might or might not mean for a city's landscape a decade or more from now. The CSIR Spatial Planning ... Read more
Land use and land cover change in the Western Cape Province: quantification of changes & understanding of driving factors

Author: Tizora, P ; Le Roux, Alize ; Mans, Gerbrand G ; Cooper, Antony K Date: Jul 2016 The Western Cape Province is currently faced with population growth, declining household sizes, increasing household numbers, high levels of migration, urbanization and escalating development pressures. These factors have consequently triggered ... Read more
Our Urban Future: Highlighting the growth trajectory of South Africa's settlements

Author: Le Roux, Alize ; Arnold, Kathryn A ; Makhanya, Sibusisiwe A ; Mans, Gerbrand G ; Wools, L Date: Sep 2018 South Africa is experiencing high levels of population expansion and urbanisation, and this growth is occurring at an increasingly rapid pace. Population change over time (growth or decline) is an inevitable phenomenon. Current projections ... Read more
An overview of models to support spatial planning and land use management processes: Engaging our future

Author: Le Roux, Alize ; Mans, Gerbrand G ; Van Heerden, Quintin ; Ludick, Chantel Date: Nov 2018 There is a need for models and tools, to better understand/explore the impacts of future policies on land use, to predict behaviour under specific scenarios, inputs and pressures, to study, understand and explore links and phenomenas. Urban ... Read more
South Africa’s coastal climate risk: A national assessment

Author: Lück-Vogel, Melanie ; Theron, A ; Williams, A ; Le Roux, Alize ; Van Huyssteen, Elsona ; Theron, C ; Van Niekerk, Lara ; Peter, R ; Khati, P Date: Oct 2020 South Africa's coastal zone is an attractive space for economic and recreational activities. Approximately 60% of the South African economy depends on coastal natural resources and trade infrastructure such as ports. As of 2013, an estimated ... Read more
Spatial Change as Drivers of Risk and Vulnerability in South Africa: Spatial trends in the 3 metropolitan cities of Gauteng

Author: Pieterse, Amy ; Van Niekerk, Cornelia W ; Le Roux, Alize ; Van Huyssteen, Elsona ; Mans, Gerbrand G ; Maritz, Johan Date: Jul 2016 Urban spatial change trends manifest most noticeably in Gauteng. This not only confirms perceptions about metros as increasingly being the spaces where the future of South Africa's youth will be determined, but also once again rings the alarm ... Read more
Spatial change as drivers of risk and vulnerability in South African cities: Spatial trends in the three metropolitan cities of Gauteng

Author: Pieterse, Amy ; Van Niekerk, Cornelia W ; Van Huyssteen, Elsona ; Maritz, Johan ; Le Roux, Alize ; Mans, Gerbrand G Date: Jul 2016 Since 1994 the South African urban landscape has been changing as a result of fundamental social, economic and political transformations. Metropolitan cities, especially, face unique challenges because of the dynamism of urban populations. ... Read more
A spatial SEIR model for COVID-19 in South Africa

Author: Fabris-Rotelli, I ; Holloway, Jennifer P ; Kimmie, Z ; Archibald, S ; Debba, Pravesh ; Manjoo-Docrat, R ; Le Roux, Alize ; Dudeni-Tlhone, Nontembeko ; Van Rensburg, CJ ; Thiede, R Date: Nov 2022 The virus SARS-CoV-2 has resulted in numerous modelling approaches arising rapidly to understand the spread of the disease COVID-19 and to plan for future interventions. Herein, we present an SEIR model with a spatial spread component as well ... Read more
Validation of vertical refractivity profiles as required for performance prediction of coastal surveillance radars

Author: Naicker, K ; Anderson, F ; Le Roux, Alize ; Alhuwaimel, S Date: Apr 2011 Maritime border safeguarding is a vital component in the protection of a countries resources and interests against illegal activities. With the increasing asymmetric nature of today’s threats, a primary requirement of any coastal surveillance ... Read more

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