Measuring equality in access to urban parks: A big data analysis from Chengdu

Dai, Weiwei; Yuan, Suyang; Liu, Yangyang; Peng, Dan; Niu, Shaofei

doi:10.3389/fpubh.2022.1022666

Cited by 9 publications

(4 citation statements)

References 66 publications

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“…The Third Ring Road of Chengdu, which is part of Chengdu's city center, includes Jinniu District, Qingyang District, Wuhou District, Chengdu High-tech District, Jinjiang District, Longquanyi District and Chenghua District [43,44]. The total length of Chengdu's Third Ring Road is approximately 51 km.…”

Section: Research Areamentioning

confidence: 99%

Refuge Green Space Equity: A Case Study of Third Ring Road on Chengdu

Cao,

Guo,

Fang

et al. 2023

Land

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As part of urban green space and emergency shelters, refuge green spaces (RGS) contribute significantly to the resilience of cities to natural disasters. In contrast, few studies have been conducted to assess the equity of RGS in relation to their planning layout. The presented research aims to quantitatively evaluate the equity of RGS within Chengdu’s Third Ring Road, and to propose corresponding optimization measures in conjunction with future green space planning. The rapid evacuation capacity of the RGS was evaluated by calculating the equity of the RGS in walking modes of 5, 10 and 15 min using an improved three-step floating catchment area method (3SFCA). Based on the results, RGS had an average equity in the study area. The total number of RGS within the Third Ring Road of Chengdu was insufficient, with an uneven spatial distribution and a structure to be optimized. The rapid evacuation capacity of RGS in 5 and 10 min needs to be further improved. The short-term resettlement capacity of RGS after 15 min was relatively good. Using Moran’s I index, the RGS equity and house price results were analyzed and no significant aggregation and polarization were observed. Following the evaluation, recommendations are made for optimizing and adding future RGS in accordance with Chengdu Green Space System Planning. The equity of RGS has been significantly improved after optimization, which can meet the needs of over 90% of residents for 15 min. This study provided feasible suggestions for the layout and structural optimization of the future RGS within the Third Ring Road of Chengdu, which aimed to create a RGS network with complex functions, to meet the multiple needs of citizens.

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Section: Research Areamentioning

confidence: 99%

Refuge Green Space Equity: A Case Study of Third Ring Road on Chengdu

Cao,

Guo,

Fang

et al. 2023

Land

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“…Various methodologies have been proposed and adopted to effectively assess the accessibility and equity of public service facilities, including network analysis [27], walkability evaluation [28], cumulative opportunity measurement [29,30], gravity model [31], 2SFCA method [32][33][34] and so on. Among them, the 2SFCA is increasingly utilized in accessibility evaluation research [35,36], as it effectively addresses factors influencing accessibility from both the supply and demand perspectives [37]. In response to the limitations of the traditional 2SFCA method in representing distance effects, variations in search radius, travel modes, and facility competitiveness, researchers have continuously worked on optimizing and improving the 2SFCA method.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Spatial Equity of Multi-Type Health Service Facilities: An Improved Method Integrating Scale Accessibility and Type Diversity

Zeng,

Zuo,

et al. 2024

Land

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Ensuring the spatial equity of health service facilities (HSFs) is crucial for the well-being of residents. However, previous research has predominantly focused on the accessibility and equity of single-type facilities, neglecting the residents’ demand for diversified types of health services. This study proposes a multi-type, Gaussian-based, two-step floating catchment area method (MT-G2SFCA) to assess the comprehensive accessibility and equity of multi-type HSFs in different age groups in the Hedong District of Tianjin, with the Gini coefficient and the bivariate local Moran’s I. Furthermore, the key factors affecting the accessibility were explored through a geo-detector. The results indicate the following: (1) Neglecting the health benefits of facility type diversity can result in an underestimation of the accessibility and equity; (2) neglecting the differences in walking ability of the elderly can result in an overestimation of the accessibility and equity; and (3) the Pedestrian Route Directness is the key factor affecting the accessibility and equity in high-density urban areas, and especially that the facility density is the key factor for the elderly. This research emphasizes the impact of facility type diversity on the accessibility and equity of HSFs, which can offer more precise and holistic technical assistance and policy recommendations for optimizing the allocation of HSFs.

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“…The continuous progress of park accessibility assessment can also be found in the advancements in spatial modelling methods. The Two-Step Floating Catchment Area (2SFCA) is a typical one and Dai et al utilized this method to measure spatial accessibility of green spaces in Chengdu across diverse transportation modes [28].…”

Section: Introductionmentioning

confidence: 99%

The change of green space well-being during rapid urbanization: A case study in Jinan, China, 2006–2018

Lu,

Wang,

Shao

2023

PLoS ONE

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With the rapid advancement of urbanization, the green space well-being (GSWB) of developing countries faces drastic changes and is increasingly threatened. Green and residential spaces are the core elements of GSWB; however, we know very little about the interaction and combination of the two in terms of their effect on GSWB. This study identified the spatiotemporal features of GSWB and critically examined how patterns of residential–green combinations affect GSWB. Based on land-use data for Jinan from 2006 to 2018, and using the spatial measurement tool GeoDa, we found that both green and residential space have increased significantly in central Jinan. At the macro level, the spatial correlation between the two decreased significantly; meanwhile, at the micro level, there are obvious differences in time and geography. This led to differences in the distribution of GSWB between regions with high value and those with low value. We revealed that the development, preservation, and demolition of residential and green spaces influence changes in GSWB. The positive effects on GSWB come from (1) mountain park development policy in built-up areas, (2) theme park development policy in new urban areas, and (3) urban renewal and demolition policy. The negative effects on GSWB come from (1) issues remaining from prior extensive urban development, (2) the replacement of central areas driven by urban branding, and (3) the lack of supervision of nearby facilities for new housing development. To better understand changes in GSWB, it is necessary to consider its internal residential–green spatial collaboration and propose targeted response strategies. This can help to better safeguard the quality of human settlements in the process of urbanization in developing countries.

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Measuring equality in access to urban parks: A big data analysis from Chengdu

Cited by 9 publications

References 66 publications

Refuge Green Space Equity: A Case Study of Third Ring Road on Chengdu

Refuge Green Space Equity: A Case Study of Third Ring Road on Chengdu

Assessing the Spatial Equity of Multi-Type Health Service Facilities: An Improved Method Integrating Scale Accessibility and Type Diversity

The change of green space well-being during rapid urbanization: A case study in Jinan, China, 2006–2018

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