An Improved Accessibility-Based Model to Evaluate Educational Equity: A Case Study in the City of Wuhan

Wang, Yiheng; Liu, Yanfang; Xing, Lijun; Zhang, Ziyi

doi:10.3390/ijgi10070458

Cited by 23 publications

(15 citation statements)

References 87 publications

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“…Some studies have confirmed that citizens' actual routes and time consumption were more meaningful than Euclidean distance, and high travel costs may diminish residents' desire to visit parks [39,45]. Interestingly, we found that residents' usage patterns of the different parks were relatively consistent from the perspective of travel time consumption.…”

Section: Spatial Relationship Between Park Service Area and Accessibility Based On Time Thresholdssupporting

confidence: 60%

“…In contrast to network analysis by ArcGIS, the latest road networks will no longer need to be established ahead of time. By inputting the latitude/longitude coordinates of the origin and destination with APIs, we could easily obtain detailed travel routes and the corresponding travel costs calculated by AI technology for different transportation modes, such as driving, public transit, walking, and biking [44][45][46]. Scholars have begun to use web map APIs in their studies, such as those on the dynamic efficiency of traffic networks [47] and the spatial equity of public facilities [48,49].…”

Section: Introductionmentioning

confidence: 99%

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Exploring Spatial Distribution of Urban Park Service Areas in Shanghai Based on Travel Time Estimation: A Method Combining Multi-Source Data

Hui

Yan

2021

IJGI

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Due to a growing appreciation for the ecological and recreational benefits of public green spaces, the evaluation of urban parks’ service efficiency, as well as citizens’ behavioral preferences for daily recreation, have become an increasing academic focus. However, due to the lack of empirical approaches, existing research on exploring park service areas has been simplified by their use of Euclidean distance or buffer sets by simulation, ignoring the fact that the likelihood of citizens visiting urban parks is time sensitive. Utilizing mobile signaling data and web map services, this study proposes an approach to estimating the travel times of park visitors and analyzing the characteristics of park service areas from the perspective of actual time consumption. Taking Shanghai as a case study, this research firstly identified the time–cost decay of parks with different areas and locations. A comparison analysis was then used to examine the spatial relationship between park service areas and their accessibility defined by time consumption. The results show that (1) urban parks in Shanghai have larger mean service radii than existing planning guidelines, and park service areas were significantly influenced by park locations; (2) people have a great preference for urban parks whose travel times by public transit are under 40 min, and they have no desire to visit parks located within or outside the Middle Ring Road when the travel times reach 60 min and 75 min, respectively; (3) the shapes of park service areas are consistent with the high-accessibility districts defined by time thresholds, in spite of some differences caused by citizens’ choices. These findings provide an effective tool for evaluating the actual characteristics of park recreational services, along with direct implications for policymakers aiming to establish effective strategies for improving the accessibility and vitality of urban parks.

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Section: Spatial Relationship Between Park Service Area and Accessibility Based On Time Thresholdssupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Exploring Spatial Distribution of Urban Park Service Areas in Shanghai Based on Travel Time Estimation: A Method Combining Multi-Source Data

Hui

Yan

2021

IJGI

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“…However, our results for the dynamic public transit mode are not entirely consistent, which may be due to our study considering the public transit mode (such as bus and metro) and set a smaller spatial scale unit. Public transit accessibility is more dependent on route and station distribution [28], so the comparison relationship is more complicated. In addition, a finer study scale may also make it easier to show data differences.…”

Section: Interpretation and Applicationmentioning

confidence: 99%

“…The original 2SFCA approach assumes that all populations travel to supply locations by a single travel mode [27]. This assumption may underestimate or overestimate the accessibility value and result in an unreliable research conclusion [28]. In fact, the mode of travel may be related to the location of the destination and may vary from person to person.…”

Section: Introductionmentioning

confidence: 99%

Assessing Park Accessibility Based on a Dynamic Huff Two-Step Floating Catchment Area Method and Map Service API

Wang

Wei

2022

IJGI

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Park green space (PGS) is an important part of urban ecosystem and green infrastructure, and the ease of access to PGS is closely related to the health of residents. A growing number of studies have attempted to identify accessibility disparities, but results have varied because of the travel mode choice and the measurement method. This study proposes a dynamic Huff two-step floating catchment area (H2SFCA) method based on map service API (Application Programming Interface) to assess the accessibility of PGS, with the Gini coefficient and bivariate local Moran’s I used to analyze accessibility equity. Results show that: (1) driving and biking modes have more significant spatiotemporal compression effects than dynamic modes, public transit, and walking mode. (2) The accessibility values and spatial patterns vary significantly by travel mode. The PGS availability pattern at the local level is more uneven than the distribution of accessibility at the regional level. In comparison with dynamic travel modes, the accessibility values for the single travel mode are more likely to be overestimated or underestimated. (3) The PGS accessibility by the dynamic modes generally has better spatial equity and residents can select suitable travel tools to acquire more equitable park services. In addition, there is a significant accessibility difference between dynamic driving-based mode and dynamic transit-based mode in four subdistricts, which are mainly located in the south of Tianhe District. The public transport facilities linking parks in these areas need to be optimized. This study further improves the accessibility evaluation method, with the findings conducive to the implementation of refined PGS planning and management.

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“…The 2SFCA method is an easy-to-explain and easy-to-calculate method and can be combined with geographic information systems (GIS) to determine existing differences that exist in terms of fairness [31,32]. This method has been widely used in research on public health services [7,33], public transport, education services [34,35], comprehensive public services [36,37], and other fields [27,[38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Measuring the Differences of Public Health Service Facilities and Their Influencing Factors

Liu

Fang

2021

Land

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The equitable distribution of public health facilities is a major concern of urban planners. Previous studies have explored the balance and fairness of various medical resource distributions using the accessibility of in-demand public medical service facilities while ignoring the differences in the supply of public medical service facilities. First aid data with location information and patient preference information can reflect the ability of each hospital and the health inequities in cities. Determining which factors affect the measured differences in public medical service facilities and how to alter these factors will help researchers formulate targeted policies to solve the current resource-balance situation of the Ministry of Public Health. In this study, we propose a method to measure the differences in influence among hospitals based on actual medical behavior and use geographically weighted regression (GWR) to analyze the spatial correlations among the location, medical equipment, medical ability, and influencing factors of each hospital. The results show that Wuhan presents obvious health inequality, with the high-grade hospitals having spatial agglomeration in the city-center area, while the number and quality of hospitals in the peripheral areas are lower than those in the central area; thus, the hospitals in these peripheral areas need to be further improved. The method used in this study can measure differences in the influence of public medical service facilities, and the results are consistent with the measured differences at hospital level. Hospital influence is not only related to the equipment and medical ability of each hospital but is also affected by location factors. This method illustrates the necessity of conducting more empirical research on the public medical service supply to provide a scientific basis for formulating targeted policies from a new perspective.

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An Improved Accessibility-Based Model to Evaluate Educational Equity: A Case Study in the City of Wuhan

Cited by 23 publications

References 87 publications

Exploring Spatial Distribution of Urban Park Service Areas in Shanghai Based on Travel Time Estimation: A Method Combining Multi-Source Data

Exploring Spatial Distribution of Urban Park Service Areas in Shanghai Based on Travel Time Estimation: A Method Combining Multi-Source Data

Assessing Park Accessibility Based on a Dynamic Huff Two-Step Floating Catchment Area Method and Map Service API

Measuring the Differences of Public Health Service Facilities and Their Influencing Factors

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