Search results

The purpose of this paper is to provide an overview of the economics of providing well-located housing in the inner city of Cape Town. The paper emphasises the need to maintain an appropriate balance between the viability and affordability of the product offered to the market and overcoming the value versus cost challenges. While developers have limited influence over value, they do have influence over cost structures through the development approach that is chosen. Moreover, local authorities influence the viability of projects through standards and regulations. The conclusion drawn from the research has considerable implications for the formulation of market-driven housing policy interventions.

In addition to the review of urban economics theory and the literature on the drivers and costs of inner-city, higher-density residential development, a series of interviews with inner-city residential developers was conducted to access current property development cost data and to identify the parameters that determine the viability of inner-city, high-density residential development.

Cape Town, like other South African cities, suffers from being inefficient and inequitable largely due to its low density and sprawling nature. As a result, most planning- and housing-related policy interventions advocate the provision the higher-density, more affordable residential housing in well-located areas such as the inner city. However, to date, these policies have, on the whole, been unsuccessful in achieving these outcomes. This paper argues that this is because these policies largely do not take urban economics into account and fail to address the value versus cost tension that needs to be overcome to allow for the provision of such accommodation. Based on the viability calculations provided, the research illustrates the main cost drivers associated with higher-density, inner-city residential development and makes certain recommendations as to how these cost barriers can be reduced.

Financing arrangements and taxation implications have not been accounted for as these are often specific to the developer and thus cannot be generalised.

The solutions put forward by the paper offer lower-income households the ability to successfully compete with higher-income households and other land uses for well-located space in Cape Town’s inner city.

The findings of this research illustrate the type of interventions that the public and private sectors can consider to improve the viability and affordability of affordable housing units in city centres located in emerging countries.

While traditional urban economic concepts are drawn upon, the paper contributes to addressing the challenge of providing higher-density, more affordable accommodation in South African inner cities. It does this by applying these well-known concepts to the inner city of Cape Town and draws on current data and developer views to accurately diagnose the problem and, in turn, to offer pragmatic solutions.

The purpose of this paper is to investigate the transformation of inner‐city sites previously developed for industry use in Chinese city, which is driven by the unique social, economic and political settings in China featured by the emergence of the market mechanism for urban land use. The existing body of knowledge about urban brownfields suggests a lack of understanding and information about the transition‐led inner‐city brownfield development in China.

This paper adopts a case study approach using the R&F high‐density apartment project in the inner‐city of Guangzhou built on a former chemically polluted site to provide factual evidence for the state of inner‐city brownfield development in China. The paper identifies institutions, processes and practices that are related to the reclamation of inner‐city brownfield sites for high‐density residential use and preliminarily assesses its impact.

The paper suggests that, although issues about environmental impact appear to be carefully treated during the project execution, much less care is given to pre‐construction and post‐occupancy phases. There is also a serious lack of specific standards and policies that are designed for governing the issues directly related to inner‐city brownfield development. This could have substantial impact on the land use in China's major cities, but it has not been paid sufficient attention.

This paper shows that there is an urgent need to design and develop policy and industry standards specifically address inner‐city brownfield development.

The paper confirms the need for more careful treatment to inner‐city brownfield projects that are being “fast tracked” due to the pressure for high‐speed economic growth and the demand for inner‐city housing. This paper also contributes to the initiation of basic criteria that help identify inner‐city brownfield projects for more comprehensive investigation to further evaluate impacts of China's economic transition on its urban built environment.

Despite carbon reduction commitments, many constraints hinder the delivery of low-carbon buildings (LCBs) in high-rise high-density cities. The collaborative commitment of relevant stakeholders is vital to effectively address and mitigate these constraints. Hence, this study aims to comprehensively explore the required stakeholder collaboration attributes to address and mitigate the “common” constraints of delivering LCBs by focussing on several high-rise high-density cities.

A list of 21 “significant and common” constraints was identified through a systematic literature review followed by a questionnaire survey covering five economies (Hong Kong, Singapore, Australia, Qatar and the UAE). Nineteen influential stakeholders/stakeholder categories were identified through the literature, and their ability to influence the 21 constraints was mapped and identified through a two-round Delphi survey of 15 experienced professionals. The Delphi survey findings were analysed through social network analysis (SNA) methods to assess the stakeholder engagement and collaboration attributes.

The SNA results revealed the ability of stakeholders to influence the constraints, required collaborative stakeholder networks to address the constraints, significance of stakeholders according to the SNA centrality measures, core and periphery stakeholders and individual co-affiliation networks of core stakeholders.

While achieving the planned primary target of exploring stakeholder collaboration and their significance through SNA, this study also presents a useful sequential methodological approach for future researchers to conduct similar studies in different contexts. The findings also provide a foundation for accelerating the delivery of LCBs by strengthening stakeholder collaboration.

PLANET OF SLUMS

DESIGNING HIGH-DENSITY CITIES FOR SOCIAL AND ENVIRONMENTAL SUSTAINABILITY

THE WHOLE BUILDING HANDBOOK : How to Design Healthy, Efficient and Sustainable Buildings

In cities with high density, heat is often trapped between buildings which increases the frequency and intensity of heat events. Researchers have focused on developing strategies to mitigate the negative impacts of heat in cities. Adopting green infrastructure and cooling pavements are some of the many ways to promote thermal comfort against heat. The purpose of this study is to improve microclimate conditions and thermal comfort levels in high-density living conditions in Seoul, South Korea.

This study compares six design alternatives of an apartment complex with different paving and planting systems. It also examines the thermal outcome of the alternatives under normal and extreme heat conditions to suggest strategies to secure acceptable thermal comfort levels for the inhabitants. Each alternative is analyzed using ENVI-met, a software program that simulates microclimate conditions and thermal comfort features based on relationships among buildings, vegetation and pavements.

The results indicate that grass paving was more effective than stone paving in lowering air temperature and improving thermal comfort at the near-surface level. Coniferous trees were found to be more effective than broadleaf trees in reducing temperature. Thermal comfort levels were most improved when coniferous trees were planted in paired settings.

Landscape elements show promise for the improvement of thermal conditions because it is much easier to redesign landscape elements, such as paving or planting, than to change fixed urban elements like buildings and roads. The results identified the potential of landscape design for improving microclimate and thermal comfort in urban residential complexes.

The results contribute to the literature by examining the effect of tree species and layout on thermal comfort levels, which has been rarely investigated in previous studies.

This exploratory research paper aims to examine the social interactions within multi-owned properties (MOPs) in suburban Brisbane, Australia, and the influences these have on “sense of community” (SOC).

A constructivist grounded theory research approach is adopted, utilising qualitative research methods of 17 in-depth interviews across four suburbs.

Respondents of this research do know others within their MOP, although these are surface-level social interactions rather than deep social ties. Social interactions are influenced by concerns for privacy, resident homogeneity, tenure type and the safety and security of the built environment. A disconnect exists between marketing and reality when respondents discuss an SOC. Development of an SOC is also constrained by the strata and community title legislation that enables MOPs ' existence. Self-governance measures exclude the majority of MOP residents from engaging in community participation, through bodies ' corporate and decision-making practices.

The research design limited external validity to other groups and settings. It was also challenging accessing residents and MOP owners for inclusion in this research.

The research is significant in addressing the knowledge gap of social relations within MOPs. MOPs will be a key driver for the development industry in coming decades, so it is important to understand the lived experience of residents to ensure a liveable and sustainable residential product for the future.

This research enables the authors to highlight the importance of proper pricing for retailers. The purpose of this paper is to demonstrate the importance of demand-based pricing, providing empirical results that reveal the validity of this pricing philosophy in the sport retailing industry. In particular, this study has identified the limits of acceptable prices for the products studied, selected the most appropriate method for pricing products suffering from high competition and compared the impact produced on price perceptions according to different retail environments to be able to relate changes in the acceptable prices ranges according to the geographical location of each point of sale, differentiating between rural or urban environment and type of client.

The authors have carried out surveys of 350 customers in each of the three points of sale analysed. Therefore, there are a total of 1,050 interviewees, for the three products analysed. The direct method of acceptable prices setting is developed. In addition, ANOVA and t-test have been carried out to find differences between the three shops.

One main finding is that the acceptable price range is not unique. Each point of sale has one that is distinct because it depends on many factors: the competition, the economic capacity of the closest residents, the location of the point of sale or the ability to attract customers.

The foremost contribution of this paper is to demonstrate empirically how considering the local demand at setting prices would generate larger earnings, even for a small retail chain. The direct method of setting acceptable prices enables us to set the prices according to the demand. The best option is if these prices are above the costs. It can be noted that the prices should be set according to each shop, and a different price used in each point of sale to maximise profits and to adapt to what the typical customer of each shop is willing to pay, despite the products being the same and the points of sale belonging to the same retail chain.

Esta investigación nos permite resaltar la importancia de una fijación de precios adecuada para los minoristas. El objetivo principal de esta investigación es demostrar la importancia de la fijación de precios basada en la demanda, proporcionando resultados empíricos que revelan la validez de esta filosofía de fijación de precios en el sector minorista de productos deportivos. En particular, en este estudio se han identificado los intervalos de precios aceptables para los productos estudiados; se ha seleccionado el método más apropiado para la fijación de precios de productos que sufren alta competencia; y se ha comparado el impacto en las percepciones de precios según el entorno detallista y se han encontrado cambios en los intervalos aceptables de precios en función de la localización geográfica del punto de venta, diferenciando entre entorno rural y urbano, y el tipo de cliente.

Los autores han realizado encuestas a 350 clientes en cada uno de los 3 puntos de venta analizados. Por lo tanto, hay un total de 1050 entrevistados, para los 3 productos analizados. Se desarrolla el método directo de fijación de precios aceptables. Además, se han realizado pruebas ANOVAs y T para encontrar diferencias entre las 3 tiendas.

Un hallazgo principal es que el intervalo de precios aceptable no es único. Cada punto de venta tiene uno distinto porque depende de muchos factores: la competencia, la capacidad económica de los residentes más cercanos, la ubicación del punto de venta o la capacidad de atraer clientes.

La principal contribución de este artículo es demostrar empíricamente cómo considerar la demanda local al establecer precios generaría mayores ganancias, incluso para una pequeña cadena minorista. El método directo de establecer precios aceptables nos permite establecer los precios de acuerdo con la demanda. La mejor opción es si estos precios están por encima de los costos. Se puede observar que los precios deben establecerse de acuerdo con cada tienda, y se debe usar un precio diferente en cada punto de venta para maximizar los beneficios y adaptarse a lo que el cliente típico de cada tienda está dispuesto a pagar. A pesar de que los productos son los mismos y los puntos de venta pertenecientes a la misma cadena minorista.

The urban population in Indian cities is increasing at an alarming speed. Accommodating such a huge population while sustaining the environment is a challenge in urban areas. Compact urban forms with high-density planning is claimed to be a sustainable solution in such situations. Thus, this approach needs to be tested for Indian urban areas.

This paper formulates a neighbourhood sustainability assessment (NSA) framework for monitoring, assessing and managing the population density of urban neighbourhoods. The paper identifies context-specific built density indicators at the neighbourhood scale. It assesses the indicators in neighbourhoods with varying population density by physical and perceived measures. This helps in verifying the feasibility of density by physical density assessment and verifies the acceptability of density by perceived density assessment.

When tested in the Indian context, the framework shows that although high-density neighbourhoods are sustainable, certain indicators may endorse differing densities. The result displays that high-density planning is sustainable compared to low- and medium-density neighbourhoods in the selected cities.

The study demonstrates the application of formulated assessment system in three central Indian cities with useful results. Similar studies can be conducted to identify the gaps for improving sustainability and achieve a livable density pattern.

Although sustainable development goals are part of new planning policies, there exist very few assessment systems to determine the sustainability of neighbourhoods, especially for density. The methodology will assist in developing sustainability assessment frameworks and encourage the practice of sustainability assessment in developing countries like India.

The aims of this paper is to establish an appropriate physical-change-based renewal (PCBR) projects selection mechanism capable of selecting the combination of the PCBR projects that can make up an integrated urban renewal program in high-density cities.

The research design follows a sequential integrated methodology that combines the calculation algorithms of Fuzzy Analytic Network Process (Fuzzy-ANP) with Zero-One Goal Programming (ZOGP) to support decisions for the selection of PCBR projects. In the first phase, general criteria for assessing the sustainability performance of PCBR projects were collected from relevant literature. In the second phase, the Fuzzy-ANP was used to identify the priority weights of the candidate projects through clarifying the interdependent degree between the criteria and candidate projects. Finally, ZOGP method was selected as a predetermined number of PCBR projects among candidate projects.

The feasibility and effectiveness of this hybrid approach is then verified in a case study of Yuzhong District, Chongqing in China. The results of this study indicate that the integrated method is capable of directing the decision maker toward the best compromising solution of PCBR program that can achieve the maximization of sustainable benefits and allocate limited resources most efficiently.

The novelty of this paper consists in combining the algorithms of the Fuzzy-ANP method with those of the ZOGP model that serves as an effective analysis tool to address practical decision problems. This is the first hybrid algorithms to make PCBR projects selection decision that reach the maximization of the sustainable benefits, both in economic and socio-environmental terms.

The purpose of this paper is to demonstrate significant problems in the US' development pattern of regional automobile‐dependent sprawl and local growth management and to make suggestions about adopting a regional growth management model that might better provide for more sustainable development of the built environment.

This paper reviews trends in the USA and elsewhere to determine the negative effects of the current system of sprawl and the potential benefits of developing higher‐density urban centers. The paper also looks to models in some US cities and Europe to further analyze potential legal and political issues related to this type of regional sustainable development.

Unsustainable, automobile‐dependent regional sprawl is a result of local zoning, growth management, and parking programs and has negative effects both now and for the future. The result has been more time, money, and resources wasted in automobile transit instead of new planning models that would lead to a more sustainable and less automobile‐dependent future.

A metropolitan sustainable development governing framework for growth management in the twenty‐first century is essential for a sustainable future. This includes higher‐density urban centers, transit‐oriented development centers, and a change in public attitude away from “not in my back yard” thinking.

This paper provides the potential benefits of creating a metropolitan governing framework to identify and regulate “growth areas” in a region. It further demonstrates how linking these areas to regional transit planning will help achieve the development of higher‐density, mixed use, and intensive urban core job/housing areas where people could live, work, shop, and play without the use of the automobile.