scholarly journals Urban sprawl: Extent and environmental impact in Baguio City, Philippines

Spatium ◽  
2016 ◽  
pp. 7-14 ◽  
Author(s):  
Lord Gonzales

Urban sprawl has emerged as a striking characteristic of recent global urban development. Land use policies advocating urban expansion for residential use to the detriment of a critical environment as in the case of Baguio City, Philippines, have shaped and reinforced the urban sprawl phenomenon. Urban sprawl is characterized by discontinuous, fragmented/leapfrog development, with random population densities. There are generally few studies regarding the environmental impact of urban sprawl and it is along this vein that this study was undertaken. The purpose of the study is to gauge how extensive urban sprawl has grown in Baguio City via Shannon?s entropy model and to explore its impact on the city?s environment. The result of the study revealed that urban sprawl prevails over the city?s physical development. The proximity of the entropy value to the maximum reference value, indicate a highly dispersed urban development attributed to the continuous increase in population, coupled with the physical constraint of topography and its limited land area. The most critical issue challenging the local government of Baguio City and its people is the creation of a Long Term Development Plan that should strike a balance between local ambitions, demographic facts, and the environmental sustainability.

Author(s):  
Zakka Solomon Dyachia ◽  
Ariva Sugandi Permana ◽  
Chin Siong Ho ◽  
Adams Ndalai Baba ◽  
Oluwagbemiga Paul Agboola

Land use, urban development and environmental sustainability have become an interesting research arena as urban development would change the city landscape as well as generate environmental degradation. This paper looks at the missing link between land use planning and urban growth, and it implications for environmental sustainability in a selected sub Saharan Africa city of Kaduna, Nigeria. We assessed urban growth from historical GIS data of the city to evaluate the urban expansion. At the same time, regression analysis was used to established relationship between carbon emission and traffic volume in the city. A city characterized by weak land use planning has created a gap leading to uncoordinated land use planning and uncontrolled physical growth. A steady increase of built up area of 8,400.31 hectares in 1982 to an area of 17,120.5 hectares in 2015 can be a reflection of the presence of uncontrolled urban expansion. The lack of coordination between land use planning and urban growth has resulted to environmental ills within the city. One among the ills, is ubiquitous traffic congestion within the city leading to high carbon (CO2) emission. Findings shows a strong connection between emission and volume of traffic. In addition to findings, is the decline of green areas in the city. By this findings, it is suggested that the modern concept of land use planning which embraces flexibility, public participation and integration of environmental issues should be entrenched and allow to take the lead in the process of urban growth.


2012 ◽  
Vol 524-527 ◽  
pp. 2766-2769
Author(s):  
Yong Chun Wu ◽  
Xin Kui Liu ◽  
Lian Feng Xu

Create a good city environment is an eternal theme of human development. The urbanization has brought not only economic and social development, but also urban sprawl and environmental damage, which make the city become a tool to complete various functions and no longer suitable for residents to live. A strange phenomenon appears that the more development of the city, the lower residents’ satisfaction to the urban environment. This article argues that meeting the needs of the people is the true meaning of urban development, and discusses the needs of the residents to the urban environment.


2019 ◽  
Vol 11 (5) ◽  
pp. 1313 ◽  
Author(s):  
Evidence Enoguanbhor ◽  
Florian Gollnow ◽  
Jonas Nielsen ◽  
Tobia Lakes ◽  
Blake Walker

Rapid urban expansion is a significant contributor to land cover change and poses a challenge to environmental sustainability, particularly in less developed countries. Insufficient data about urban expansion hinders effective land use planning. Therefore, a high need to collect, process, and disseminate land cover data exists. This study focuses on urban land cover change detection using Geographic Information Systems and remote sensing methods to produce baseline information in support for land use planning. We applied a supervised classification of land cover of LANDSAT data from 1987, 2002, and 2017. We mapped land cover transitions from 1987 to 2017 and computed the net land cover change during this time. Finally, we analyzed the mismatches between the past and current urban land cover and land use plans and quantified the non-urban development area lost to urban/built-up. Our results indicated an increase in urban/built-up and bare land cover types, while vegetation land cover decreased. We observed mismatches between past/current land cover and the existing land use plan. By providing detailed insights into mismatches between the regional land use plan and unregulated urban expansion, this study provides important information for a critical debate on the role and effectiveness of land use planning for environmental sustainability and sustainable urban development, particularly in less developed countries.


2021 ◽  
Author(s):  
Michael Hayek

Brownfields are "abandoned, vacant, derelict or underutilized commercial and industrial properties where past actions have resulted in actual or perceived contamination" (NRTEE, 2003, p.1). Brownfield redevelopment, because of its contributions to urban sustainability, intensification and environmental quality, has become a critical issue in urban development literature of late. Through case-study research this paper aims to evaluate the relative sustainability of four Port Lands brownfield redevelopments that involve converting brownfields into green space in the City of Toronto. This study has shown how brownfield redevelopment and more specifically, turning brownfields into green space represent an application of all three pillars of sustainability. However, the exact extent of how this type of redevelopment represents an application of sustainable development cannot be truly measured or quantified. It has also highlighted the need to develop a comprehensive set of sustainability indicators that can be specifically applied to projects that aim to convert brownfields into green space.


2019 ◽  
Vol 8 (2S3) ◽  
pp. 1103-1108

The aim of this paper is to present the reader with the practices, the challenges and the benefits of the changing patterns in urban planning. There is a necessity to implement measures that focus on the population’s needs, and to merge the potential of urban planning and the townspeople’s memories in response to the phenomenon of the redevelopment of downtown. The opportunity of the insertion of municipal administrators, developers, designers and most importantly townspeople in the process, ensures the commitment to arising outcomes and enhances the potential of urban planning. Also, the process should have a restricted number of clear goals to avoid losing the space potential and the connections to the memories of the city’s residents. Redeveloping cities’ downtowns have been a critical issue to tackle as the need arises to revive and modernize the old parts of the cites, usually ending with the destruction of the history and the space memories in those parts leading to the loss of its connection with the city’s residents and erasing the spirit of the city piece by piece. One example of such approaches is observed on the reconstruction of Beirut, Lebanon Central District (BCD), starting from 1991 and the reconstruction of Al-Abdali which is one of the most strategic and old locations in the city of Amman, Jordan in 2004 For this reason, this paper is devoted to discuss information, which can form the basis for the urban development. And set theoretical ground rules for cooperation with the public and allowing for their participation in the urban development process.


Author(s):  
Michael J. Lorr

Chapter abstract: This chapter addresses how the city government, related offices, non-profit organizations, and activists have attempted to shift Chicago’s urban development towards environmental sustainability. The chapter first, discusses what Chicago has accomplished, second, defines sustainability, third, outlines Chicago’s deficiencies in achieving its sustainability goals, and finally, presents alternative visions of sustainability rooted in resistance and activism. This chapter asks to what extent sustainable development in Chicago is influenced by its business-as-usual neoliberal context and to what extent it is influenced by alternative activist ideas of environmental justice.


2021 ◽  
Author(s):  
Michael Hayek

Brownfields are "abandoned, vacant, derelict or underutilized commercial and industrial properties where past actions have resulted in actual or perceived contamination" (NRTEE, 2003, p.1). Brownfield redevelopment, because of its contributions to urban sustainability, intensification and environmental quality, has become a critical issue in urban development literature of late. Through case-study research this paper aims to evaluate the relative sustainability of four Port Lands brownfield redevelopments that involve converting brownfields into green space in the City of Toronto. This study has shown how brownfield redevelopment and more specifically, turning brownfields into green space represent an application of all three pillars of sustainability. However, the exact extent of how this type of redevelopment represents an application of sustainable development cannot be truly measured or quantified. It has also highlighted the need to develop a comprehensive set of sustainability indicators that can be specifically applied to projects that aim to convert brownfields into green space.


2020 ◽  
Vol 22 (1) ◽  
pp. 43-59
Author(s):  
Anna Hajnalka Kerekes ◽  
Szilárd Lehel Poszet ◽  
Laurențiu Călin Baciu

The last three decades have marked an unprecedented urban expansion of the city of Cluj-Napoca, leading to strong anthropogenic influences on the natural environment and important changes in the land-use. Due to the specific morphology of Cluj area, characterized by limited available plane surfaces which are insufficient to support the urban expansion, more and more territories with slopes between 5°-26° are used for constructions. These areas are marked by high risks of mass movements due to their specific geological and geomorphological characteristics, therefore the present study proposes a more detailed and complex GIS and remote sensing analysis of the western urban part of Cluj-Napoca, in order to highlight the main changes of the city and the consequences of the human actions. One of the most used radar interferometry (InSAR) technique was applied in order to detect land deformations that can threaten the infrastructure and the population. Sentinel-1B SAR imagery were processed by the DInSAR methodology, resulting in a land deformation map, which represents an important support in generating the vulnerability assessment. Based upon this evaluation, we concluded that the most vulnerable neighbourhoods to land deformations from the western part of the city are the peripheral ones, as following: Dâmbul Rotund, Bună Ziua, Europa, Mănăștur, West Iris and Făget, proving that human activity and the geological setting are the main triggering factors of the discussed phenomenon.


2020 ◽  
Vol 5 (6) ◽  
pp. 110-118
Author(s):  
Ibimilua Adewale Festus ◽  
Ibimilua Foyeke Omoboye ◽  
Ogundare Babatope Andrew

Urban Sprawl is a disturbing issue to geographers, urban planners and allied professionals in the 21st century.  The anxiety is based mainly on the social, political, economic, cultural and environmental consequences of rapid urban growth.  Hence, this study examines the reasons for urbanization, as well as encroachment of urban development into the border belt.  Next, the study probes into the causes, consequences and adverse effects of uncontrolled infringement and conversion of rural land to urban uses.  Likewise, the study investigates the processes of land use development, population expansion and physical growth, as well as their ecological foot prints.  Consequently, the study identified the major causes of urban sprawl as rapid population increase, high level of urban development pressure, provision of housing, changes in living standard, as well as technological changes among others.  Also, the study found out that urban sprawl is desirable because of the benefits of spread of development, low rent at the periphery, as well as lesser pressure on the environment of the border belt.  Also, the effects of urban sprawl were recognized as destruction of the means of livelihood of the rural dwellers at the urban fringe belt, land fragmentation, food scarcity, changes in the ecosystem, environmental pollution, biodiversity loss, as well as loss of wildlife habitat.  For the achievement of sustainable urban development in the 21st century and beyond, the study recommends environmental monitoring with the aid of geographic information systems and remote sensing techniques, environmental impact assessment, development control, farm land policy, regulation of land allocation, sustainable land use management, as well as enforcement of planning policies.


Author(s):  
Mozhgan Samzadeh ◽  
Zunaibi Abdullah ◽  
Saari Omar ◽  
Aniza Abdul Aziz

In the past few decades, cities from various parts of the world have faced with unplanned and uncontrolled physical expansion due to inappropriate policies. Among different solutions against urban sprawl, the dominant sustainable cure is the so-called 'Urban Consolidation' (UC). This paper aims to explore urban sprawl characteristics and present its cause and effect on the sustainability criteria of Shiraz city, Iran. It is confined to an exploration of population growth and physical expansion of the city. The data has been collected from governmental organizations and documents. This paper examines UC policy implementation in the inner city of Shiraz to control low-density urban sprawl. As the result, this paper discovers that the policy emphasizes on the higher density housing development in existing urban areas considering the capacity of infrastructures and facilities’ availability prior to calculate housing targets to decrease the demand for Greenfield development. It concludes with a brief discussion on the challenges to achieve sustainable urban development goals in the city through UC strategies.


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