scholarly journals Mapping of the Flood Distribution in an Urban Environment: The Case of Palma (Mallorca, Spain) in the First Two Decades of the 21st Century

Earth ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 960-971
Author(s):  
Joan Rosselló-Geli ◽  
Miquel Grimalt-Gelabert
Keyword(s):  
21St Century ◽  
Urban Sprawl ◽  
Urban Areas ◽  
Spatial Location ◽  
Flood Events ◽  
Great Magnitude ◽  
Risk Areas ◽  
Palma De Mallorca ◽  
Flooding Events ◽  
The City

The City of Palma de Mallorca has been historically affected by flood events, with the latest flood of great magnitude occurring in 1962. After decades without large flooding events, since the start of the 21st century, 28 floods have been identified within the city boundaries. As change in the spatial location of these events has been observed, a research to identify where the floods are located nowadays and which causes can be related to such distribution has been undertaken. Six types of floods were identified and the events classified accordingly, with the deficient planned infrastructures, flat urban areas without defined drainage and coastal sectors the three most common types. The results highlight the importance of the urban sprawl and malpractices related to flood risk areas, thus increasing the occurrence of floods of less spatial impact but with greater disturbance on the daily activity of the city inhabitants. Nevertheless, some uncertainties are identified in this research, demonstrating the need of further investigations.

SUSTAINABLE URBAN DEVELOPMENT THROUGH URBAN CONSOLIDATION POLICY IN SHIRAZ, IRAN

2016 ◽  
Author(s):  
Mozhgan Samzadeh ◽  
Zunaibi Abdullah ◽  
Saari Omar ◽  
Aniza Abdul Aziz
Keyword(s):  
Urban Development ◽  
Urban Sprawl ◽  
Urban Areas ◽  
Sustainable Urban Development ◽  
The Past ◽  
Governmental Organizations ◽  
Development Goals ◽  
Physical Expansion ◽  
The City ◽  
Urban Consolidation

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.

scholarly journals Intelligent Urban Planning and Ecological Urbanscape-Solutions for Sustainable Urban Development. Case Study of Wolfsburg

2021 ◽  
Vol 13 (9) ◽  
pp. 4903
Author(s):  
Joanna Dudek-Klimiuk ◽  
Barbara Warzecha
Keyword(s):  
Urban Planning ◽  
Urban Sprawl ◽  
Urban Areas ◽  
Sustainable Urban Development ◽  
Social Community ◽  
Huge Impact ◽  
Smart Mobile ◽  
The City

Intelligent urban planning and ecological urbanism can be recognized as two of the key solutions to act against urban sprawl. This process is associated with suburbanization, blurring boundaries between the city and suburbs, and the undefined role of open and green spaces within new structures. It has been identified as the biggest and the most common problem worldwide. This non-central planning has a huge impact not only on economic aspects, but—most of all—on the ecological and landscaping balance within the urban area. This study covers not only the recognition of the outlined situation, but also a conceptual proposal to challenge the problems of urban sprawl. The city of Wolfsburg serves as a case study to which the tools of Ecological Urbanism and Intelligent Urbanism were applied. A corrective plan for the study area has been worked out, based on the main approaches in urban planning of the 21st century. The green transformation processes to achieve resiliency within urban areas are inevitable and will have to be conducted due to the rising number of the dwellers, steadily changing climate, and socio-economic conditions all over the world. The main solutions include mainly the system of green corridors, interconnectedness of open spaces, walkability with smart mobile options and social community as a nucleus of a local neighborhood.

scholarly journals Spatial characteristics of waste management in the "city-suburban" system

2017 ◽  
Keyword(s):  
Urban Areas ◽  
Household Waste ◽  
Economic Factors ◽  
Suburban Areas ◽  
Spatial Features ◽  
Effective System ◽  
Risk Areas ◽  
The City ◽  
Socio Economic Factors

Goal. To establish the dependence of the formation of unauthorized dumps of solid household waste with spatial features and socio-economic factors. Methods. Field, statistical data processing. Results. As a result of inventory of landfills of waste related to urban areas. Babai and s. Zatyshne 23 objects were discovered. Each object is analyzed in accordance with a number of criteria designed to optimize waste accumulation and disposal processes in suburban areas. On the basis of the analysis, all objects are classified and grouped into groups for a number of common features. The conducted analysis and classification of landfills enable to give a clear linking of objects to the spatial features within which they were formed. In addition, the analysis of the socio-economic component gives an idea of the context of the formation of landfills, the features of their further growth and morphological composition. On the basis of the analysis, four zones of risk of the formation and development of unauthorized waste landfills are allocated. Risk zones are allocated on the basis of the number of formed landfills, their area and the dynamics of growth. Conclusions dedicated areas of risk of the formation and growth of unauthorized dumps give the opportunity to build an effective system of environmental management and a program of sanitary clearing of territories. Binding landfill to spatial features and socio-economic factors allows for forecasting and subsequent control, which will be aimed at stopping the formation of new objects. Important in this approach is the concept of "individuality" of populated areas, since identified risk areas for one group of settlements, may be irrelevant for the next territorial cluster of management.

scholarly journals Characterizing multi-dimensionality of urban sprawl in Jamnagar, India using multi-date remote sensing data

2014 ◽  
Vol XL-8 ◽  
pp. 761-766 ◽  
Author(s):  
G. Jain ◽  
S. Sharma ◽  
A. Vyas ◽  
A. S. Rajawat
Keyword(s):  
Urban Sprawl ◽  
Urban Areas ◽  
Remote Sensing Data ◽  
Population Data ◽  
Five Dimensions ◽  
Infill Development ◽  
Multiple Dimensions ◽  
Time Period ◽  
New Development ◽  
The City

This study attempts to measure and characterize urban sprawl using its multiple dimensions in the Jamnagar city, India. The study utilized the multi-date satellite images acquired by CORONA, IRS 1D PAN & LISS-3, IRS P6 LISS-4 and Resourcesat-2 LISS-4 sensors. The extent of urban growth in the study area was mapped at 1 : 25,000 scale for the years 1965, 2000, 2005 and 2011. The growth of urban areas was further categorized into infill growth, expansion and leapfrog development. The city witnessed an annual growth of 1.60 % per annum during the period 2000–2011 whereas the population growth during the same period was observed at less than 1.0 % per annum. The new development in the city during 2000–2005 time period comprised of 22 % as infill development, 60 % as extension of the peripheral urbanized areas, and 18 % as leapfrogged development. However, during 2005–2011 timeframe the proportion of leapfrog development increased to 28 % whereas due to decrease in availability of developable area within the city, the infill developments declined to 9 %. The urban sprawl in Jamnagar city was further characterized on the basis of five dimensions of sprawl viz. population density, continuity, clustering, concentration and centrality by integrating the population data with sprawl for year 2001 and 2011. The study characterised the growth of Jamnagar as low density and low concentration outwardly expansion.

scholarly journals SUSTAINABLE URBAN DEVELOPMENT THROUGH URBAN CONSOLIDATION POLICY IN SHIRAZ, IRAN

2016 ◽  
Vol 14 (5) ◽  
Author(s):  
Mozhgan Samzadeh ◽  
Zunaibi Abdullah ◽  
Saari Omar ◽  
Aniza Abdul Aziz
Keyword(s):  
Urban Development ◽  
Urban Sprawl ◽  
Urban Areas ◽  
Sustainable Urban Development ◽  
The Past ◽  
Governmental Organizations ◽  
Development Goals ◽  
Physical Expansion ◽  
The City ◽  
Urban Consolidation

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.

scholarly journals Identificação e mapeamento das áreas de risco no município de Itajaí- SC a partir das inundações ocorridas em 2011 (Identification and mapping of the flood risk areas in the city of Itajaí-SC based on the 2011 floods)

2016 ◽  
Vol 9 (6) ◽  
pp. 1895
Author(s):  
André Jesus Periçato ◽  
Valdeir Demétrio da Silva ◽  
Francieli Sant'ana Marcatto
Keyword(s):  
Urban Space ◽  
Flood Risk ◽  
Urban Areas ◽  
Historical Analysis ◽  
Risk Map ◽  
Risk Area ◽  
Control And Prevention ◽  
Risk Areas ◽  
High Flood ◽  
The City

A ocorrência de inundações em áreas urbanas tem se intensificado nos últimos anos, ocasionando diversos danos e prejuízos para a sociedade. O intenso crescimento das cidades nas últimas décadas, assim como a ocupação irregular do espaço urbano com moradias precárias e próximas aos rios, são fatores determinantes para que ocorram essas situações de catástrofes. O objetivo deste trabalho é mapear e identificar as áreas de inundação em setembro de 2011 no município de Itajaí para a confecção do mapa de risco. Para isso foi realizado uma análise histórica do crescimento da malha urbana de Itajaí, correlacionando com as manchas de inundação. Os resultados obtidos revelaram que a inundação ocorrida em 2011 atingiu parte significativa da área do município, com destaque ao perímetro urbano. Os pontos mais críticos de inundação foram às áreas onde houve o crescimento urbano, com destaque as proximidades do rio Itajaí-Mirim. Foi possível analisar por meio do mapa de risco, que grande parte da cidade de Itajaí foi classificada com um alto índice de risco a inundação. Deste modo, pode-se concluir que o mapeamento das áreas de risco configura-se como uma importante ferramenta e instrumento no controle e prevenção à inundação em áreas afetadas por esse fenômeno.   A B S T R A C T The occurrence of floods in urban areas has intensified in the recent years, causing many kinds od damage and loss for society. The intense growth of the cities in the past few decades, along with the irregular occupation of urban space with precarious settlements close to the rivers, were determining factors for these catastrophic situations to occur. The objective of this study is mapping and identifying the flooding areas in September 2011 in the city of Itajaí for the confection of a risk map. For this a historical analysis of the growth of the Itajaí urban area was realized, correlating with the flood spots. The obtained results reveal that the 2011 floods affected a significant portion of the city’s area, especially the urban perimeter. The most critical flood spots were in the areas where urban growth took place, especially nearby the Itajaí-Mirim river. By analizing the map, it’s noted that a big part of the city of Itajaí is classified as a high flood risk area. It can be concluded that the mapping of risk areas is an important tool and instrument in the control and prevention of floods in the areas affected by this phenomenon. Keywords: urban flooding, geotechnology, flood risk map.   

scholarly journals Urban Sprawl

2020 ◽  
Author(s):  
Balamurugan Paramasivam ◽  
Illanthirayan Arumugavelu
Keyword(s):  
Urban Sprawl ◽  
Urban Areas ◽  
Transport Network ◽  
Historical Information ◽  
Safe Environment ◽  
Indian Immigrants ◽  
Medical Facilities ◽  
The World ◽  
The City ◽  
Indian Cities

Swift progress in urban areas can pilot to urban sprawl, where new components are urbanized around the external boundaries of urban areas, frequently taking up important farmland. Many tenants want better residence, comfortable space, and calm and safe environment, which they discover in the new suburban growth far separate from the center of the city. This kind of expansion requires the addition of utilities and the transport network, as well as the precautions of services such as education, amusement, medical facilities, and commercial services. A number of Indian cities, for example, have a “Delhi,” a “Mumbai,” and other cultural-based communities that reflect our multi-cultural people. Historical information said, many Indian immigrants who lived in these neighborhoods were poorly treated and subject to racism and discrimination by the general people. Urbanization is a truth of life in most cities in India and around the world.

scholarly journals Disaster Risk Resilience in Colima-Villa de Alvarez, Mexico: Application of the Resilience Index to Flash Flooding Events

2019 ◽  
Vol 16 (12) ◽  
pp. 2128 ◽  
Author(s):  
Mendoza-Cano Oliver ◽  
López-de la Cruz Jesús ◽  
Pattison Ian ◽  
Martinez-Preciado MA ◽  
Uribe-Ramos Juan Manuel ◽  
...  
Keyword(s):  
Public Perception ◽  
Flash Flood ◽  
Public Knowledge ◽  
The Novel ◽  
Flood Events ◽  
Urban Resilience ◽  
The Public ◽  
Resilience Index ◽  
Flooding Events ◽  
The City

Resilience is an indicator of the ability of systems to withstand disruption within acceptable degradation parameters and also their recovery time. It is essential for public policies to understand how the population reacts to a particular risk. In this paper we have performed a study that quantitatively measures perceptions of flooding and resilience to flooding in the city of Colima-Villa de Alvarez, Mexico 2018–2019. A resilience index has been applied to ten zones of the city. In our research we assessed risk perception through a city-wide survey with questions based on a Likert scale. An analysis was performed on public knowledge of the existing security protocols for floods and evaluated the public perception of the availability of critical services, such as fresh water, electricity, food, drainage, communications and public transport during a flash flood events. This research has identified populated low resilience zones that can be considered as priorities for resource and effort to mitigate floods and their impacts. The novel resilience index developed in this work can also be applied to other type of risk that humans face and used as a basis for discussions about urban resilience.

scholarly journals Urban Sprawl in Inner Medium-Sized Cities: The Behaviour in Some Spanish Cases Since the Beginning of the 21st Century

Urban Science ◽  
2019 ◽  
Vol 3 (1) ◽  
pp. 10
Author(s):  
Francisco Cebrián Abellán ◽  
Irene Sánchez Ondoño
Keyword(s):  
Urban Area ◽  
21St Century ◽  
Urban Sprawl ◽  
Urban Areas ◽  
Growth Dynamic ◽  
Urban Hierarchy ◽  
Strong Growth ◽  
Large Cities ◽  
The Past ◽  
Demographic Dynamics

The processes of urban sprawl that have been present over the past two decades in the different strata of the urban hierarchy have also affected, as a whole, medium-sized cities. The urban sprawl has been particularly pronounced during the period of expansive Spanish urbanism, in which many of the municipalities situated in the vicinities of large cities have been affected by major demographic dynamics and (sub)urbanisation development outside the traditional city limits. Sometimes, these processes have been greater than the nearby cities in the urban area where they are inserted. In this study, we examine the general mechanisms identified within an urban crown size (within a radius of 30 km) and at the scale of the municipality, based on an analysis of two distinct periods: one linked to a strong growth dynamic (2000–2008), and another related to subsequent crisis (2009–2016). A group of 23 inner medium-sized Spanish cities has been analysed, taking into account the trends of the population, the surface of unbuilt plots, the built surface, and the amount of housing. We have identified the typologies of their respective urban areas over the two periods considered.

scholarly journals Causing Factors of Urban Sprawl Symptoms in Peri-Urban Areas of Singaraja City, Bali Province

2021 ◽  
Vol 5 (3) ◽  
pp. 134-142
Author(s):  
I Gede Wyana Lokantara ◽  
Farisa Maulinam Amo
Keyword(s):  
Urban Sprawl ◽  
Migrant Workers ◽  
Urban Areas ◽  
Agricultural Sector ◽  
Time Series Data ◽  
Economic Transformation ◽  
Dominant Factor ◽  
Series Data ◽  
City Development ◽  
The City

The development of a city is marked by an increase in population and an increase in the need for space, which causes the city to be unable to accommodate its activities. Hence, physical development of the city to the peri-urban area and urban sprawl occurs. This also happened in Singaraja City, Bali province as proved by the increasing development of settlements in the area. The purpose of this research is to identify the development of Singaraja City spatially by looking at the pattern of city development due to the influence of the urban sprawl and to identify the factors that influence its development. This study used qualitative methods to analyze the spatial transformation through mapping techniques using time series data developed regions and non-woke Singaraja City, so discovered patterns development impact suburban of Singaraja City. It further analyzed the determinant factors causing urban sprawl in suburban Singaraja. The research shows that Singaraja City has experienced urban development towards the suburban of the city by forming a leap-frog development pattern. The suburban of Singaraja City that are most dominantly affected are the western and eastern regions, namely Baktiseraga Village and Banyuning district. The dominant factor that causes urban sprawl in suburban Singaraja City is people's desire to conduct commercial activities amounting to 94.67% with the opening of shops and services to facilitate the needs of students or migrant workers. The emergence of new economic activities initiated by the surrounding population, causing the orientation of economic transformation in the suburbs of Singaraja city to switch to the non-agricultural sector.

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