Evaluating the Accessibility of Urban Public Open Spaces Based on an Improved 2SFCA Model: A Case Study Within Chengdu’s Second Ring Road
The rational allocation of urban public open spaces (UPOS) is critical for creating a livable urban environment. Traditional Two-Step Floating Catchment Area (2SFCA) models often lack sufficient quantitative analysis regarding the supply of urban public service facilities and population demand. This...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Land |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-445X/14/1/188 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832588161529675776 |
|---|---|
| author | Ling Jian Xiaojiang Xia Yinbing Zhao Yang Zhang Yuanqiao Wang Yi Tang Jie Chang Changliu Wang |
| author_facet | Ling Jian Xiaojiang Xia Yinbing Zhao Yang Zhang Yuanqiao Wang Yi Tang Jie Chang Changliu Wang |
| author_sort | Ling Jian |
| collection | DOAJ |
| description | The rational allocation of urban public open spaces (UPOS) is critical for creating a livable urban environment. Traditional Two-Step Floating Catchment Area (2SFCA) models often lack sufficient quantitative analysis regarding the supply of urban public service facilities and population demand. This study, taking the area within Chengdu’s Second Ring Road as an example, proposes a 2SFCA model that integrates both supply and demand improvements to evaluate UPOS accessibility. The accessibility results are further analyzed using hotspot analysis, and blind zone detection. In terms of supply improvements, the model incorporates additional indicators beyond the spatial area of UPOS, including service quality and the diversity of surrounding environmental service functions, to better evaluate the overall attractiveness of UPOS to residents. On the demand side, besides population size, the model incorporates the spatial distribution of residents and differences in social characteristics affecting UPOS demand. Results indicate that the improved 2SFCA model, which considers both the attractiveness of UPOS and residents’ demand, significantly enhances the accuracy of accessibility assessments. There are substantial differences in service quality among UPOS, while the diversity of surrounding environmental service functions remains generally high. UPOS demand follows a “high in the northeast—low in the southwest” spatial pattern. The spatial distribution of UPOS accessibility shows a “high in the west—low in the east” pattern, opposite to the demand distribution, indicating a supply–demand mismatch. UPOS accessibility identifies one hotspot cluster and four cold spot clusters, with large areas showing no significant characteristics. Additionally, 10.58% of the study area remains blind zones, requiring urgent attention. This study offers a more scientific method and framework for research on the spatial layout and supply–demand matching of UPOS. |
| format | Article |
| id | doaj-art-cea09d4f66be40d2a4d10ec19ba2d445 |
| institution | Kabale University |
| issn | 2073-445X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Land |
| spelling | doaj-art-cea09d4f66be40d2a4d10ec19ba2d4452025-01-24T13:38:15ZengMDPI AGLand2073-445X2025-01-0114118810.3390/land14010188Evaluating the Accessibility of Urban Public Open Spaces Based on an Improved 2SFCA Model: A Case Study Within Chengdu’s Second Ring RoadLing Jian0Xiaojiang Xia1Yinbing Zhao2Yang Zhang3Yuanqiao Wang4Yi Tang5Jie Chang6Changliu Wang7College of Geography and Planning, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Geography and Planning, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Geography and Planning, Chengdu University of Technology, Chengdu 610059, ChinaSchool of Architecture, Southeast University, Nanjing 210096, ChinaCollege of Geography and Planning, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Geography and Planning, Chengdu University of Technology, Chengdu 610059, ChinaAgricultural Information and Rural Economy Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, ChinaArchitecture College, Southwest Minzu University, Chengdu 610041, ChinaThe rational allocation of urban public open spaces (UPOS) is critical for creating a livable urban environment. Traditional Two-Step Floating Catchment Area (2SFCA) models often lack sufficient quantitative analysis regarding the supply of urban public service facilities and population demand. This study, taking the area within Chengdu’s Second Ring Road as an example, proposes a 2SFCA model that integrates both supply and demand improvements to evaluate UPOS accessibility. The accessibility results are further analyzed using hotspot analysis, and blind zone detection. In terms of supply improvements, the model incorporates additional indicators beyond the spatial area of UPOS, including service quality and the diversity of surrounding environmental service functions, to better evaluate the overall attractiveness of UPOS to residents. On the demand side, besides population size, the model incorporates the spatial distribution of residents and differences in social characteristics affecting UPOS demand. Results indicate that the improved 2SFCA model, which considers both the attractiveness of UPOS and residents’ demand, significantly enhances the accuracy of accessibility assessments. There are substantial differences in service quality among UPOS, while the diversity of surrounding environmental service functions remains generally high. UPOS demand follows a “high in the northeast—low in the southwest” spatial pattern. The spatial distribution of UPOS accessibility shows a “high in the west—low in the east” pattern, opposite to the demand distribution, indicating a supply–demand mismatch. UPOS accessibility identifies one hotspot cluster and four cold spot clusters, with large areas showing no significant characteristics. Additionally, 10.58% of the study area remains blind zones, requiring urgent attention. This study offers a more scientific method and framework for research on the spatial layout and supply–demand matching of UPOS.https://www.mdpi.com/2073-445X/14/1/188urban public open spacesimproved 2SFCA modelspatial layoutequity |
| spellingShingle | Ling Jian Xiaojiang Xia Yinbing Zhao Yang Zhang Yuanqiao Wang Yi Tang Jie Chang Changliu Wang Evaluating the Accessibility of Urban Public Open Spaces Based on an Improved 2SFCA Model: A Case Study Within Chengdu’s Second Ring Road Land urban public open spaces improved 2SFCA model spatial layout equity |
| title | Evaluating the Accessibility of Urban Public Open Spaces Based on an Improved 2SFCA Model: A Case Study Within Chengdu’s Second Ring Road |
| title_full | Evaluating the Accessibility of Urban Public Open Spaces Based on an Improved 2SFCA Model: A Case Study Within Chengdu’s Second Ring Road |
| title_fullStr | Evaluating the Accessibility of Urban Public Open Spaces Based on an Improved 2SFCA Model: A Case Study Within Chengdu’s Second Ring Road |
| title_full_unstemmed | Evaluating the Accessibility of Urban Public Open Spaces Based on an Improved 2SFCA Model: A Case Study Within Chengdu’s Second Ring Road |
| title_short | Evaluating the Accessibility of Urban Public Open Spaces Based on an Improved 2SFCA Model: A Case Study Within Chengdu’s Second Ring Road |
| title_sort | evaluating the accessibility of urban public open spaces based on an improved 2sfca model a case study within chengdu s second ring road |
| topic | urban public open spaces improved 2SFCA model spatial layout equity |
| url | https://www.mdpi.com/2073-445X/14/1/188 |
| work_keys_str_mv | AT lingjian evaluatingtheaccessibilityofurbanpublicopenspacesbasedonanimproved2sfcamodelacasestudywithinchengdussecondringroad AT xiaojiangxia evaluatingtheaccessibilityofurbanpublicopenspacesbasedonanimproved2sfcamodelacasestudywithinchengdussecondringroad AT yinbingzhao evaluatingtheaccessibilityofurbanpublicopenspacesbasedonanimproved2sfcamodelacasestudywithinchengdussecondringroad AT yangzhang evaluatingtheaccessibilityofurbanpublicopenspacesbasedonanimproved2sfcamodelacasestudywithinchengdussecondringroad AT yuanqiaowang evaluatingtheaccessibilityofurbanpublicopenspacesbasedonanimproved2sfcamodelacasestudywithinchengdussecondringroad AT yitang evaluatingtheaccessibilityofurbanpublicopenspacesbasedonanimproved2sfcamodelacasestudywithinchengdussecondringroad AT jiechang evaluatingtheaccessibilityofurbanpublicopenspacesbasedonanimproved2sfcamodelacasestudywithinchengdussecondringroad AT changliuwang evaluatingtheaccessibilityofurbanpublicopenspacesbasedonanimproved2sfcamodelacasestudywithinchengdussecondringroad |