scholarly journals Analysis on the spatial accessibility of parks and green spaces and optimal site selection—Taking Weifang prefecture-level city as an example

2021 ◽  
Vol 865 (1) ◽  
pp. 012020
Author(s):  
Wenqi Yan ◽  
Shijie Wang
Keyword(s):  
Site Selection ◽  
Spatial Accessibility ◽  
Green Spaces ◽  
Optimal Site

scholarly journals Study and Analysis of Optimized Site-selection for Urban Green Space by Using Fuzzy logic

2012 ◽  
Vol 2 (2) ◽  
Author(s):  
Atefe Ahmadi ◽  
Nahid Sajadian ◽  
H. Jalaliyan ◽  
Narges Naghibirokni
Keyword(s):  
Fuzzy Logic ◽  
Site Selection ◽  
Green Space ◽  
Urban Green Space ◽  
Green Spaces ◽  
Land Uses ◽  
Urban Green ◽  
Significant Difference ◽  
Optimized Distribution ◽  
Space Case

Public land-uses in many cities are not able to present desirable services to citizens because of some problems such as high population density, lack of regularity in establishment and site-selection, and lack of attention to accessibility radius and population thresholds. This problem is magnified in big cities especially for land-uses such as green spaces. In urban supplying services only increasing of services is not a reason for proper supplying services but more important is optimized distribution of these centers. In this regard, present paper based on descriptive-analytical method as well as GIS follows optimized distribution of green space in the cities according to site-selection principals of urban green space. Case study is region 7 of Ahvaz municipality which has a population of 150215 persons and 2.78 green space capita, and this amount in addition to significant difference to standards determined by environment united nations (20-25 for a person), has been not distributed optimally. Regarding this city locating warm and dry zone of the earth, it is very important to select an optimized site for green spaces .Hence, in order to select a proper and optimized site for the green spaces according to site-selection principals layers (criteria) such as vicinity to residential centers, educational centers, cultural centers, urban infrastructures and establishments, commercial centers, hygienic centers, industrial centers and wastelands and etc. have been used. Research results in fuzzy logic valued region lands based on their importance in recognizing optimized location. Afterward, these lands were compared with land-use map and it was distinguished that lands with very good, good, and medium degree were placed close to residential, cultural, and educational centers which had more governmental ownership, and lands with weak and very weak degree were placed far from compatible land-uses, and were more placed close to industrial, administrative, hygienic sportive, and commercial centers which often had private ownership, therefore, they were not suggested for creating green space.

Optimal site selection for modular nuclear power plants

2019 ◽  
Vol 125 ◽  
pp. 339-350 ◽  
Author(s):  
Aravind Devanand ◽  
Markus Kraft ◽  
Iftekhar A Karimi
Keyword(s):  
Site Selection ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Selection For ◽  
Optimal Site

scholarly journals Guidance for Optimal Site Selection of a Leadless Left Ventricular Endocardial Electrode Improves Acute Hemodynamic Response and Chronic Remodeling

2018 ◽  
Vol 4 (7) ◽  
pp. 860-868 ◽  
Author(s):  
Benjamin J. Sieniewicz ◽  
Jonathan M. Behar ◽  
Justin Gould ◽  
Simon Claridge ◽  
Bradley Porter ◽  
...  
Keyword(s):  
Site Selection ◽  
Hemodynamic Response ◽  
Left Ventricular ◽  
Chronic Remodeling ◽  
Endocardial Electrode ◽  
Optimal Site ◽  
Selection Of

scholarly journals Assessing Spatial Accessibility to Hierarchical Urban Parks by Multi-Types of Travel Distance in Shenzhen, China

2019 ◽  
Vol 16 (6) ◽  
pp. 1038 ◽  
Author(s):  
Langjiao Li ◽  
Qingyun Du ◽  
Fu Ren ◽  
Xiangyuan Ma
Keyword(s):  
Euclidean Distance ◽  
Supply And Demand ◽  
Travel Distance ◽  
The Other ◽  
Spatial Accessibility ◽  
Green Spaces ◽  
Walking Distance ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Hierarchical Levels

Urban green spaces play a critical role in public health and human wellbeing for urban residents. Due to the uneven spatial distribution of urban green spaces in most of cities, the issue of the disparity between supply and demand has aroused public concern. In a case of Shenzhen, a modified Gaussian-based two-step floating catchment area (2SFCA) method is adopted to evaluate the disparity between park provision and the demanders in terms of accessibility at hierarchical levels under four types of distance (e.g., Euclidean distance, walking distance, bicycling distance, and driving distance), which is well aligned with hierarchical systems in urban green spaces in urban planning practice. By contrast and correlation analysis, among the four types of distance, the statistical correlations are relatively high between Euclidean distance and the other three. Nonetheless, the pattern of spatial accessibility under different type of travel distance is apparently variant. Accessibility calculated by Euclidean distance is overestimated relative to that of the other three, while the pattern of walking distance and bicycling distance is similar to each other. The choice of type of distance is worthy of caution when evaluating spatial accessibility by 2SFCA method. Results show that the accessibility to parks at all hierarchical levels is high particularly, particularly at the natural level. However, the disparity between the supply and demand is significant. The percentage of communities that have high population density but low park accessibility is over 40% (equivalent to approximately 55% of the population). The finding may provide implications on access to urban greens paces for urban planners and authorities to develop effective planning strategies.

P1134Safety and efficacy of optimal site selection during biventircualar endocardial pacing: A multi-centre UK study

EP Europace ◽  
2018 ◽  
Vol 20 (suppl_1) ◽  
pp. i213-i213
Author(s):  
B Sieniewicz ◽  
J Behar ◽  
J Gould ◽  
B Porter ◽  
T R Betts ◽  
...  
Keyword(s):  
Site Selection ◽  
Endocardial Pacing ◽  
Optimal Site

scholarly journals Optimal Site Selection of Tidal Power Plants Using a Novel Method: A Case in China

Energies ◽  
2016 ◽  
Vol 9 (10) ◽  
pp. 832 ◽  
Author(s):  
Yunna Wu ◽  
Chuanbo Xu ◽  
Hu Xu
Keyword(s):  
Site Selection ◽  
Power Plants ◽  
Tidal Power ◽  
Novel Method ◽  
Optimal Site ◽  
Selection Of

Dismantling the fence for social justice? Evidence based on the inequity of urban green space accessibility in the central urban area of Beijing

2018 ◽  
Vol 47 (4) ◽  
pp. 626-644 ◽  
Author(s):  
Jiayu Wu ◽  
Qingsong He ◽  
Yunwen Chen ◽  
Jian Lin ◽  
Shantong Wang
Keyword(s):  
Social Justice ◽  
Urban Area ◽  
Green Space ◽  
Ordinary Least Squares ◽  
Urban Green Space ◽  
Spatial Accessibility ◽  
Green Spaces ◽  
Planning System ◽  
Economic Disparities ◽  
Urban Green

Gated communities have become a common feature in recent decades and have been shown to lead to social inequality to the detriment of the poorest social classes. Because access to urban green space is crucial for both physical health and spiritual pleasure, it is often regarded as an indicator of social justice; however, there are many references to the current inequity in urban green space accessibility. Our study aimed first to measure the potential spatial accessibility of green space in the central urban area of Beijing; then to evaluate the socio-economic disparities in green space accessibility; and finally, to assess the effect of the policy of “opening up gated residential communities” on urban green space accessibility. We adopt the Gaussian-based two-step floating catchment to assess the spatial accessibility of green spaces in each residential zone in the central area of Beijing, and the ordinary least squares model was used to evaluate the inequity in accessibility caused by socio-economic disparities. The results reveal that lower income residential zones have remarkably lower access to green spaces. Next, by comparing the differences in accessibility equity between two comparable scenarios in which all communities have dismantled their fences, we unexpectedly find that the inequity of access to urban green space does not improve but becomes more pronounced. We attribute this result to socio-spatial polarization. Our findings can be used by urban planners to target current urban planning system reform and by policymakers to focus closely on the gradual spatial polarization between the rich and the poor.

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