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Displaying 37 - 48 of 279

Spatially-Explicit Simulation of Urban Growth through Self-Adaptive Genetic Algorithm and Cellular Automata Modelling

Peer-reviewed publication
Septembre, 2014

This paper presents a method to optimise the calibration of parameters and land use transition rules of a cellular automata (CA) urban growth model using a self-adaptive genetic algorithm (SAGA). Optimal calibration is achieved through an algorithm that minimises the difference between the simulated and observed urban growth. The model was applied to simulate land use change from non-urban to urban in South East Queensland’s Logan City, Australia, from 1991 to 2001.

Agricultural Land Fragmentation at Urban Fringes: An Application of Urban-To-Rural Gradient Analysis in Adelaide

Peer-reviewed publication
Juin, 2017

One of the major consequences of expansive urban growth is the degradation and loss of productive agricultural land and agroecosystem functions. Four landscape metrics—Percentage of Land (PLAND), Mean Parcel Size (MPS), Parcel Density (PD), and Modified Simpson’s Diversity Index (MSDI)—were calculated for 1 km × 1 km cells along three 50 km-long transects that extend out from the Adelaide CBD, in order to analyze variations in landscape structures. Each transect has different land uses beyond the built-up area, and they differ in topography, soils, and rates of urban expansion.

Spatial and Temporal Characteristics of Road Networks and Urban Expansion

Peer-reviewed publication
Juin, 2017

Urban expansion has become a widespread trend in developing countries. Road networks are an extremely important factor driving the expansion of urban land and require further study. To investigate the relationship between road networks and urban expansion, we selected Beijing, New York, London, and Chicago as study areas. First, we obtained urban land use vector data through image interpretation using a remote sensing (RS) and geographic information systems (GIS) platform and then used overlay analysis to extract information on urban expansion.

The Relationship between Urban Sprawl and Farmland Displacement in the Pearl River Delta, China

Peer-reviewed publication
Mars, 2014

China is rapidly urbanizing and will inevitably face trade-offs between promoting economic growth through further urbanization and protecting fertile farmland against accelerated urban expansion. This paper presents how this dilemma is being addressed in one of the most rapidly urbanizing regions in China, the Pearl River Delta (PRD), by means of assessing urban growth and farmland dynamic, as well as their complex relationships.

Urban Growth Dynamics in Perth, Western Australia: Using Applied Remote Sensing for Sustainable Future Planning

Peer-reviewed publication
Mars, 2017

Earth observation data can provide valuable assessments for monitoring the spatial extent of (un)sustainable urban growth of the world’s cities to better inform planning policy in reducing associated economic, social and environmental costs. Western Australia has witnessed rapid economic expansion since the turn of the century founded upon extensive natural resource extraction. Thus, Perth, the state capital of Western Australia, has encountered significant population and urban growth in response to the booming state economy.

Villages in the City: Spatial and Temporal Heterogeneity in Rurality and Urbanity in Bangalore, India

Peer-reviewed publication
Mars, 2014

Urban-rural distinctions are particularly challenging in the context of fast growing cities in the developing world. Through an example of the Indian city of Bangalore, we demonstrate the case for development of more continuous approaches of urban representation that are needed in many parts of the world. Thus even some of the oldest areas in Bangalore, which have been part of an urban center for centuries, exhibit aspects of rurality, as much as other recently developing peri-urban parts of the city.

Rural-Urban Transition in Central Java: Population and Economic Structural Changes Based on Cluster Analysis

Peer-reviewed publication
Septembre, 2013

In Central Java, in addition to the traditional view of urban transition as an aspect of urban industrialization, rural industrialization based on small- to medium-sized enterprises has become a concern, at least since the Indonesian economic crisis in 1997. Combinations of typical urban and rural activities have resulted in certain features of rural-urban transition as the urban population has continued to increase notably. The intention of this paper is to examine how rural-urban transition characterizes the industrialization of Central Java.

The Linkages between Real Estate Tourism and Urban Sprawl in Majorca (Balearic Islands, Spain)

Peer-reviewed publication
Juin, 2013

Financial capitalism has driven profound changes in urban land use patterns in Majorca, at the Balearic Islands (Spain). This archipelago is a major tourist destination located in the Mediterranean basin, with 4,492 km2 of surface area, 1,113,114 inhabitants and 12,316,399 tourists (2011), of whom 29.9% came from Germany, 24% from the UK and 19% from the rest of Spain. Neoliberal state regulation has favored the elite’s financial interests in the real estate sector through transport megaproject investment and lifting regional planning restrictions which prevented urban growth.

Leaving no one behind: internal displacement and the New Urban Agenda

Policy Papers & Briefs
Septembre, 2016
Global

Many internally displaced people (IDPs) find refuge in cities. However, the scale of global urban internal displacement caused by violence, conflict, disasters and development projects is unknown. Cities struggle to accommodate IDPs since their movements are largely spontaneous, and some authorities may resist helping IDPs for fear of encouraging further influxes. Meanwhile, IDPs face displacement-specific challenges to rebuild their lives in urban settings and may be displaced again in the process due to lack of housing tenure security and violence and insecurity.


Home sweet home: housing practices and tools that support durable solutions for urban IDPs

Reports & Research
Février, 2015
Global

Despite a longstanding recognition of the need to improve the response of actors addressing urban displacement, there is a lack of guidance on how to do this and a limited knowledge of practices that have successfully addressed the housing, tenure security and livelihood needs of urban IDPs.