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Xiaorui Zhang
Department of Urban Planning, Hefei University of Technology, Hefei 230009, China

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Journal article
Published: 04 August 2019 in Sustainability
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Given the current lack of accessibility research on road networks in 36 major cities in China, the accessibility and its spatial difference were measured by using space syntax and Moran index. The purpose is to provide an important decision-making basis for the Chinese government to grasp the accessibility level of China’s urban roads in general and formulate urban traffic development policies. The results show that the mean value of the global integration average is only 1.0009, indicating that the accessibility level is not optimistic in general. The accessibility of 36 major cities was divided into four levels: very low, low, high, and very high. Only four cities, namely Beijing, Shijiazhuang, Xi’an, and Zhengzhou, were at a very high level. The spatial differences of accessibility presented a spatial pattern of "middle-high, east-middle, and west-low". The global integration average, intelligibility, and synergy had significant global spatial autocorrelation, while the local spatial agglomeration distributions of these three indexes were dominated by high-high types. The five cities of Beijing, Shijiazhuang, Hohhot, Taiyuan, and Zhengzhou constituted the core area of high-value clustering of local spatial autocorrelation and presented a spatial form of inverted "T" shape. The research still has some limitations. The reasons for the low accessibility of developed cities, such as Guangzhou and Nanjing, are worth further analysis. Besides, the main possible influencing factors affecting accessibility, such as urban road density and spatial form, are also worthy of further analysis.

ACS Style

Xiaorui Zhang; Andong Ren; Lihua Chen; XianYou Zheng. Measurement and Spatial Difference Analysis on the Accessibility of Road Networks in Major Cities of China. Sustainability 2019, 11, 4209 .

AMA Style

Xiaorui Zhang, Andong Ren, Lihua Chen, XianYou Zheng. Measurement and Spatial Difference Analysis on the Accessibility of Road Networks in Major Cities of China. Sustainability. 2019; 11 (15):4209.

Chicago/Turabian Style

Xiaorui Zhang; Andong Ren; Lihua Chen; XianYou Zheng. 2019. "Measurement and Spatial Difference Analysis on the Accessibility of Road Networks in Major Cities of China." Sustainability 11, no. 15: 4209.

Journal article
Published: 07 September 2016 in Sustainability
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Regional spatial functional zoning in China is a large-scale strategic planning and requires very advanced planning decision support technology. With respect to spatial functional zoning, the planning support system (PSS) is introduced as one of the most popular computer aided planning systems at the present time in this paper, and is further explained with the example of the latest regional main functional area (RMFA) planning in China. On the Visual Studio.NET visualization development platform, the planning decision model, planning decision method, and GIS are organically integrated and customized by using the component-type secondary development technology of the ArcGIS Engine with the development language VB.NET. Hence, a highly efficient and flexible planning support system of regional main functional areas (RMFA-PSS) is established. It was adopted in the research of the Beijing–Tianjin area in China and accordingly two types of main functional area planning are acquired. The RMFA-PSS offers an efficient and flexible decision support with regard to RMFA planning. The research can provide a reference for further PSS development and applications related to other types of spatial functional zoning.

ACS Style

Xiaorui Zhang; Qian Hua; Linya Zhang. Development and Application of a Planning Support System for Regional Spatial Functional Zoning Based on GIS. Sustainability 2016, 8, 909 .

AMA Style

Xiaorui Zhang, Qian Hua, Linya Zhang. Development and Application of a Planning Support System for Regional Spatial Functional Zoning Based on GIS. Sustainability. 2016; 8 (9):909.

Chicago/Turabian Style

Xiaorui Zhang; Qian Hua; Linya Zhang. 2016. "Development and Application of a Planning Support System for Regional Spatial Functional Zoning Based on GIS." Sustainability 8, no. 9: 909.

Journal article
Published: 24 July 2015 in Sustainability
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Urban ecological vulnerability is measured on the basis of ecological sensitivity and resilience based on the concept analysis of vulnerability. GIS-based multicriteria decision analysis (GIS-MCDA) methods are used, supported by the spatial analysis tools of GIS, to define different levels of vulnerability for areas of the urban ecology. These areas are further classified into different types of regulatory zones. Taking the city of Hefei in China as the empirical research site, this study uses GIS-MCDA, including the index system, index weights and overlay rules, to measure the degree of its ecological vulnerability on the GIS platform. There are eight indices in the system. Raking and analytical hierarchy process (AHP) methods are used to calculate index weights according to the characteristics of the index system. The integrated overlay rule, including selection of the maximum value, and weighted linear combination (WLC) are applied as the overlay rules. In this way, five types of vulnerability areas have been classified as follows: very low vulnerability, low vulnerability, medium vulnerability, high vulnerability and very high vulnerability. They can be further grouped into three types of regulatory zone of ecological green line, ecological grey line and ecological red line. The study demonstrates that ecological green line areas are the largest (53.61% of the total study area) and can be intensively developed; ecological grey line areas (19.59% of the total area) can serve as the ecological buffer zone, and ecological red line areas (26.80%) cannot be developed and must be protected. The results indicate that ecological green line areas may provide sufficient room for future urban development in Hefei city. Finally, the respective regulatory countermeasures are put forward. This research provides a scientific basis for decision-making around urban ecological protection, construction and sustainable development. It also provides theoretical method references for future research into urban ecological vulnerability, including the introduction of GIS-MCDA methods into the field of urban ecological vulnerability, which expands the application for these techniques.

ACS Style

Xiaorui Zhang; Zhenbo Wang; Jing Lin. GIS Based Measurement and Regulatory Zoning of Urban Ecological Vulnerability. Sustainability 2015, 7, 9924 -9942.

AMA Style

Xiaorui Zhang, Zhenbo Wang, Jing Lin. GIS Based Measurement and Regulatory Zoning of Urban Ecological Vulnerability. Sustainability. 2015; 7 (8):9924-9942.

Chicago/Turabian Style

Xiaorui Zhang; Zhenbo Wang; Jing Lin. 2015. "GIS Based Measurement and Regulatory Zoning of Urban Ecological Vulnerability." Sustainability 7, no. 8: 9924-9942.

Journal article
Published: 22 July 2015 in Sustainability
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Frequent fire accidents pose a serious threat to human life and property. The spatio-temporal features of China’s urban fires, and their drivers should be investigated. Based on the Spatio-temporal Dynamic panel data Model (SDM), and using fire data gathered from 337 Chinese cities in 2000 to 2009, the influence of spatio-temporal factors on the frequency of urban fires was analyzed. The results show that (1) the overall fire incidence of China increased annually before 2002 and reduced significantly after 2003, and then high fire incidence increased in western China; (2) Spatio-temporal factors play a significant role in the frequency of Chinese urban fires; specifically, the fire assimilation effect, fire inertia effect and fire caution effect. The ratio of fire incidence of China has reduced significantly, and the focus of fire incidence moved towards the western region of China. GDP and humidity have a significant effect on urban fire situation change in China, and these effects may be referred to as “fire assimilation effects”, “fire inertia effects” and “fire caution effects”.

ACS Style

Zhenbo Wang; Xiaorui Zhang; Bo Xu. Spatio-Temporal Features of China’s Urban Fires: An Investigation with Reference to Gross Domestic Product and Humidity. Sustainability 2015, 7, 9734 -9752.

AMA Style

Zhenbo Wang, Xiaorui Zhang, Bo Xu. Spatio-Temporal Features of China’s Urban Fires: An Investigation with Reference to Gross Domestic Product and Humidity. Sustainability. 2015; 7 (7):9734-9752.

Chicago/Turabian Style

Zhenbo Wang; Xiaorui Zhang; Bo Xu. 2015. "Spatio-Temporal Features of China’s Urban Fires: An Investigation with Reference to Gross Domestic Product and Humidity." Sustainability 7, no. 7: 9734-9752.