Spatial expansion of development zone in Changchun city and its impact on urban space

The urban expansion direction and mode of Shizuishan City is addressed based on GIS and improved spatial diffusion model-replacing the spatial straight distance with cost weighted distance. This paper divides its spatial expansion into four cases: zero resistance, resistance, incomplete barrier and isolation. The diffusion model of urban space in terms of the new understanding of the resistance barrier in the spatial diffusion process is discussed. Then, this paper puts forward new trends of spatial development. The results reveal that Dawukou city area and Pingluo city, and Wuhai city and Huinong district form the coordination development tendency.

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Influencing Factors Study of the Contemporary Spatial Expansion of Wuhan

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.357-360.1911 ◽

2013 ◽

Vol 357-360 ◽

pp. 1911-1917

Author(s):

Xia Li

Keyword(s):

Data Analysis ◽

Urban Space ◽

Industrial Structure ◽

Academic Research ◽

Influence Factors ◽

Urban Land Use ◽

Transitional Period ◽

Impact Factors ◽

Systematic Research ◽

Spatial Expansion

The rapid urban development of Chinas city during the transitional period has received extensive academic research and policy attention. This study inquired into the process, features and impact factors of spatial expansion in Wuhan during the transitional period. This study conducted a systematic research of the transitional urban space and using data analysis to explore the spatial logic and inherent laws underlying the spatial expansion of Wuhan. Based on data analysis via SPSS, three primary components closely related to urban land use change are identified. Corresponding influence factors under the spatial expansion are explored. Economic development, urbanization level, industrial structure, the foreign investment and other indicators drive the spatial expansion of Wuhan, and it is urgent to optimize the current space framework of the downtown areas for the creation of a sustainable and effective urban space form. This study also indicates the new trends of spatial expansion and relevant recommendations for the future development of Wuhan.

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The Research of the Power Mechanism in the Coastal City Spatial Expansion in Period of Rapid Urbanization - Take Qingdao as an Example

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.253-255.157 ◽

2012 ◽

Vol 253-255 ◽

pp. 157-161

Author(s):

Hong En Zhang ◽

Xu Chong ◽

Nie Tong

Keyword(s):

Urban Space ◽

Industrial Structure ◽

Land Policy ◽

Spatial Expansion ◽

Rapid Urbanization ◽

Coastal City ◽

Dynamic Factors ◽

City Space ◽

Internal Reason ◽

The City

Since reforming and opening-up policy, the internal reason of fast urbanization caused the restructuring of the city space. But the affects of unique marine resource in coastal city in the urban spatial expansion process can not be neglected. From the perspective of dynamic factors take Qingdao as an example, in this essay, the research would be done to discuss about the coastal city's influence on the expansion of urban space in port economy , the industrial structure, land policy, living factors and other aspects.

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RESERCH ON URBAN SPATIAL EXPANSION MODEL BASED ON MULTI-OBJECT GRAY DECISION-MAKING AND CA: A CASE STUDY OF PIDU DISTRICT, CHENGDU CITY

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xlii-3-1183-2018 ◽

2018 ◽

Vol XLII-3 ◽

pp. 1183-1189

Author(s):

Z. Liu ◽

Y. Li

Keyword(s):

Cellular Automata ◽

Urban Space ◽

Design Theory ◽

Research Area ◽

Development Theory ◽

Spatial Expansion ◽

Transformation Mechanism ◽

Multi Objective ◽

Model Based ◽

Expansion Model

This paper from the perspective of the Neighbor cellular space, Proposed a new urban space expansion model based on a new multi-objective gray decision and CA. The model solved the traditional cellular automata conversion rules is difficult to meet the needs of the inner space-time analysis of urban changes and to overcome the problem of uncertainty in the combination of urban drivers and urban cellular automata. At the same time, the study takes Pidu District as a research area and carries out urban spatial simulation prediction and analysis, and draws the following conclusions: (1) The design idea of the urban spatial expansion model proposed in this paper is that the urban driving factor and the neighborhood function are tightly coupled by the multi-objective grey decision method based on geographical conditions. The simulation results show that the simulation error of urban spatial expansion is less than 5.27&thinsp;%. The Kappa coefficient is 0.84. It shows that the model can better capture the inner transformation mechanism of the city. (2) We made a simulation prediction for Pidu District of Chengdu by discussing Pidu District of Chengdu as a system instance.In this way, we analyzed the urban growth tendency of this area.presenting a contiguous increasing mode, which is called "urban intensive development". This expansion mode accorded with sustainable development theory and the ecological urbanization design theory.

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Spatial Suitability Evaluation of an Arid City Based on the Perspective of Major Function Oriented Zoning: A Case Study of Urumqi City in Xinjiang, China

Sustainability ◽

10.3390/su10093004 ◽

2018 ◽

Vol 10 (9) ◽

pp. 3004 ◽

Cited By ~ 2

Author(s):

Dongli Chen ◽

Degang Yang ◽

Xinhuan Zhang ◽

Yannan Zhao ◽

Yufang Zhang

Keyword(s):

Urban Space ◽

Basic Unit ◽

Development Zone ◽

Major Function ◽

Suitability Evaluation ◽

Ecological Protection ◽

Protection Strategies ◽

Administrative Unit ◽

Regional Sustainable Development ◽

Space Layout

The realization of regional sustainable development has been a popular research topic during the process of urbanization. To explore the coordination relationships between urban development and ecological security—taking Urumqi city, a representative arid city in Xinjiang, China, as a study area—this study has constructed a framework of spatial suitability evaluation based on the characteristics of a Mountain–Oasis–Desert System (MODS) in an arid area under the framework of major function oriented zoning (MFOZ). A spatial overlay analysis using Geographic Information System (GIS) with a 5 m × 5 m grid or towns and streets as the basic unit was applied to comprehensively evaluate spatial suitability. The results showed that the study area was zoned into a forbidden development zone (as patches set in towns and streets), an ecological protection zone (nine towns or streets), a moderate development zone (16 towns or streets), and a key development zone (82 towns or streets), accounting for 30.35%, 32.50%, 23.79%, and 13.36%, respectively. The zoning results provided a basis to pointedly put forward the development and protection strategies of each administrative unit; and the research framework can be applied to other arid areas for the decision-making related to the urban space layout and environmental management.

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Identifying Urban Functional Areas in China’s Changchun City from Sentinel-2 Images and Social Sensing Data

Remote Sensing ◽

10.3390/rs13224512 ◽

2021 ◽

Vol 13 (22) ◽

pp. 4512

Author(s):

Shouzhi Chang ◽

Zongming Wang ◽

Dehua Mao ◽

Fusheng Liu ◽

Lina Lai ◽

...

Keyword(s):

Mobile Phone ◽

Urban Space ◽

Central Area ◽

Urban System ◽

Identification Accuracy ◽

Functional Area ◽

Social Sensing ◽

Sensing Data ◽

Changchun City ◽

Functional Areas

The urban functional area is critical to an understanding of the complex urban system, resource allocation, and management. However, due to urban surveys’ focus on geographic objects and the mixture of urban space, it is difficult to obtain such information. The function of a place is determined by the activities that take place there. This study employed mobile phone signaling data to extract temporal features of human activities through discrete Fourier transform (DFT). Combined with the features extracted from the point of interest (POI) data and Sentinel images, the urban functional areas of Changchun City were identified using a random forest (RF) model. The results indicate that integrating features derived from remote sensing and social sensing data can effectively improve the identification accuracy and that features derived from dynamic mobile phone signaling have a higher identification accuracy than those derived from POI data. The human activity characteristics on weekends are more distinguishable for different functional areas than those on weekdays. The identified urban functional layout of Changchun is consistent with the actual situation. The residential functional area has the highest proportion, accounting for 33.51%, and is mainly distributed in the central area, while the industrial functional area and green-space are distributed around.

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