scholarly journals Delineating Urban Functional Zones Using U-Net Deep Learning: Case Study of Kuancheng District, Changchun, China

Land ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1266
Author(s):  
Yuewen Yang ◽  
Dongyan Wang ◽  
Zhuoran Yan ◽  
Shuwen Zhang
Keyword(s):  
Land Use ◽  
Deep Learning ◽  
Land Use Planning ◽  
Field Survey ◽  
Rapid Development ◽  
Central City ◽  
Urban Land Use ◽  
Functional Types ◽  
High Resolution Satellite Images ◽  
Functional Zones

Scientific functional zone planning is the key to achieving long-term development goals for cities. The rapid development of remote sensing technology allows for the identification of urban functional zones, which is important since they serve as basic spatial units for urban planning and functioning. The accuracy of three methods—kernel density estimation, term frequency-inverse document frequency, and deep learning—for detecting urban functional zones was investigated using the Gaode points of interest, high-resolution satellite images, and OpenStreetMap. Kuancheng District was divided into twenty-one functional types (five single functional types and twenty mixed ones). The results showed that an approach using deep learning had a higher accuracy than the other two methods for delineating four out of five functions (excluding the commercial function) when compared with a field survey. The field survey showed that Kuancheng District was progressing towards completing the goals of the Land-Use Plan of the Central City of Changchun (2011–2020). Based on these findings, we illustrate the feasibility of identifying urban functional areas and lay out a framework for transforming them. Our results can guide the adjustment of the urban spatial structure and provide a reference basis for the scientific and reasonable development of urban land-use planning.

scholarly journals How to Perceive the Trade-Off of Economic and Ecological Intensity of Land Use in a City? A Functional Zones-Based Case Study of Tangshan, China

Land ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 551
Author(s):  
Wencang Shen ◽  
Jianjun Zhang ◽  
Xiangli Zhou ◽  
Shengnan Li ◽  
Xiaoli Geng
Keyword(s):  
Land Use ◽  
Evaluation System ◽  
Rapid Development ◽  
Urban Land Use ◽  
Theil Index ◽  
Rapid Urbanization ◽  
Trade Off ◽  
Economic Output ◽  
Different Types ◽  
Functional Zones

China, in a rapid urbanization process, is accompanied by the expansion of built-up land, population accumulation, and intensive land investment, while the improvement of the urban environment cannot keep up with the population and economic density growth. Therefore, the purpose of this paper is to discuss the balance between urban land use economic intensity (built-up area density, population density, land price) and ecological intensity (the depth, breadth, and integration of ecological spaces) in Tangshan. From the perspective of functional zones (FZs), the trade-off of economic and ecological intensity of different types of land use is detailed from the evaluation system. Finally, this paper explores a common intensive development model for different FZs to reach both reasonable economic and ecological purposes in Tangshan. The upshot indicates that the economic and ecological intensity of all FZs in Tangshan follows an opposite spatial distribution, and different types of FZ own their characteristics. The Gini index and Theil index for measuring the typical FZ indicate the unbalanced state between ecological spaces and population in residential areas. To sum up, a resource-based city, such as Tangshan, in the rapid development stage of urbanization tends to pay more attention to economic output and neglect ecological benefits.

IMPACTS OF URBAN LAND USE ON CRIME PATTERNS THROUGH GIS APPLICATION

2013 ◽  
Vol 11 (2) ◽  
Author(s):  
Ahmad Nazri Muhamad Ludin ◽  
Norsiah Abd. Aziz ◽  
Nooraini Hj Yusoff ◽  
Wan Juliyana Wan Abd Razak
Keyword(s):  
Land Use ◽  
Drug Abuse ◽  
Land Use Planning ◽  
Urban Areas ◽  
Spatial Relationship ◽  
Police Department ◽  
Strong Relationship ◽  
Urban Land ◽  
Urban Land Use ◽  
Land Use Patterns

Land use planning plays a crucial role in creating a balance between the needs of society, physical development and the ecosystem. However, most often poor planning and displacement of land uses particularly in urban areas contribute to social ills such as drug abuse and criminal activities. This research explains the spatial relationship of drug abuse and other criminal activities on urban land use planning and their implications on the society at large. Spatial statistics was used to show patterns, trends and spatial relationships of crimes and land use planning. Data on crime incidents were obtained from the Royal Malaysia Police Department whilst cases of drug abuse were collected from the National Anti-Drug Agency (AADK). Analysis of the data together with digital land use maps produced by Arnpang Jaya Municipal Council, showed the distribution of crime incidents and drug abuse in the area. Findings of the study also indicated that, there was a strong relationship between petty crimes, drng abuse and land use patterns. These criminal activities tend to concentrate in residential and commercial areas of the study area.

scholarly journals Study on the Urban Fringe Based on the Expansion–Shrinking Dynamic Pattern

2021 ◽  
Vol 13 (10) ◽  
pp. 5718
Author(s):  
Changqing Sui ◽  
Wei Lu
Keyword(s):  
Land Use ◽  
Urban Planning ◽  
Land Use Planning ◽  
Urban Landscape ◽  
Rapid Development ◽  
Urban Expansion ◽  
Urban Fringe ◽  
Spatial Form ◽  
Architectural Form ◽  
Ecological Protection

The urban fringe, as a part of an urban spatial form, plays a considerably major role in urban expansion and shrinking. After decades of rapid development, Chinese cities have advanced from a simple expansion stage to an expansion–shrinking-coexistence stage. In urban shrinking and expansion, the urban fringe shows different characteristics and requirements for specific aspects such as urban planning, land use, urban landscape, ecological protection, and architectural form, thereby forming expanding and shrinking urban fringes. A comprehensive study of expanding and shrinking urban fringes and their patterns is theoretically significant for urban planning, land use, planning management, and ecological civilisation construction.

scholarly journals From centralised planning to collaborative urban land use planning: The case of Wat Ket, Chiang Mai, Thailand

2021 ◽  
Vol 4 (1) ◽  
pp. 100154
Author(s):  
Somporn Sangawongse ◽  
Robert Fisher ◽  
Sidhinat Prabudhanitisarn
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Urban Land ◽  
Urban Land Use ◽  
Chiang Mai

scholarly journals Underground Space Utilization in the Urban Land-Use Planning of Casablanca (Morocco)

Land ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 143
Author(s):  
Mariama Zerhouny ◽  
Abdelhamid Fadil ◽  
Mustapha Hakdaoui
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Urban Land ◽  
Urban Land Use ◽  
Information Modeling ◽  
Prototype Model ◽  
Underground Space ◽  
Urban Dynamics ◽  
Integrated Platform ◽  
Underground Infrastructure

With the rapid rate of population growth and economic development, cities face enormous challenges that require both optimal and integrated solutions to meet the needs of growth and to protect the environment and sustainable development. These urban dynamics, which change over time, extend not only horizontally and upward, but also downward. Thus, underground space has been utilized increasingly to relieve the urban surface and to ensure the exploitation of underground resources. The purpose of this study is to evaluate the possibilities of using this space in Casablanca as part of urban land-use planning and, consequently, to suggest an integrated model of exploitation of this space that is adapted to the specificities of the study area. Thus, an analysis of the use of underground spaces in a set of European cities has been performed. The study of the characteristics of this space in Casablanca has been realized according to the levels of geology and hydrogeology and two underground infrastructure projects. This work has led to the implementation of a prototype model named “Sub-Urban Information Modeling”. The model’s objective is to gather all the data and knowledge related to the relevant underground space in an integrated platform that can be shared and updated in order to facilitate the understanding of this environment and its interaction with the surface and to ensure the rational and efficient use of its resources.

Evaluating the strategy of decentralized urban land-use planning in a developing region

2015 ◽  
Vol 48 ◽  
pp. 534-551 ◽  
Author(s):  
Yousef Sakieh ◽  
Abdolrassoul Salmanmahiny ◽  
Javad Jafarnezhad ◽  
Azade Mehri ◽  
Hamidreza Kamyab ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Urban Land ◽  
Urban Land Use ◽  
Developing Region

Forecasting micro area broadband demand using urban land use planning tools in Karachi, Pakistan: a GIS perspective

GeoJournal ◽  
2021 ◽  
Author(s):  
Asif Gul ◽  
Syed Jamil Hasan Kazmi ◽  
Muhammad Irfan ◽  
Syeda Maria Zaidi ◽  
Bulbul Jan
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Urban Land ◽  
Urban Land Use ◽  
Planning Tools

Labor Strategy and the Politics of Elite Division in Midtown Manhattan

2017 ◽  
Author(s):  
Ian Thomas MacDonald
Keyword(s):  
New York ◽  
Land Use ◽  
New York City ◽  
Real Estate ◽  
Land Use Planning ◽  
York City ◽  
Rapid Growth ◽  
Urban Land Use ◽  
Formed Part ◽  
Hotel Workers

This chapter discusses a campaign by the New York hotel workers to ensure new hotels built in East Midtown will employ unionized labor and continue to offer decent wages and benefits. This case shows how the New York Hotel Trades Council's (HTC) intervention in East Midtown formed part of a broader campaign to block hotel development in a sector that is increasingly fragmented by service format, and most worrisome, witnessing a rapid growth of hotels providing few services and competing on price, leading to a stronger employer opposition to unionization. The outcome of this case speaks unequivocally to organized labor's strength in New York City politics and to a growing recognition in real estate and policymaking circles of labor's importance in urban land use planning.

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