Evolving term “accessibility” in spatial systems: Contextual evaluation of indicators

Ahuja, Richa; Tiwari, Geetam

doi:10.1016/j.tranpol.2021.03.006

Cited by 19 publications

(17 citation statements)

References 56 publications

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“…Therefore, the elderly who have easier access to pension facilities and resources can get timely care for their bodies and meet their basic living needs with less transportation cost, which is conducive to prolonging their life span and improving their happiness [23,24]. Access refers to the possibility of reaching a place, goods, services, etc., also known as access opportunity and convenience [25]. Accessibility assessment is one of the main methods of research on the rationality of the spatial distribution [26][27][28], which is widely used in the layout evaluation of public service facilities, such as education, medical treatment, elderly care facilities, parks, and green spaces [29,30].…”

Section: Introduction 1backgroundmentioning

confidence: 99%

Study on Spatial Distribution Equilibrium of Elderly Care Facilities in Downtown Shanghai

Huang

Gong

White

2022

IJERPH

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With the growing challenge of aging populations around the world, the study of the care services for older adults is an essential initiative to accommodate the particular needs of the disadvantaged communities and promote social equity. Based on open-source data and the geographic information system (GIS), this paper quantifies and visualizes the imbalance in the spatial distribution of elderly care facilities in 14,578 neighborhoods in downtown (seven districts) Shanghai, China. Eight types of elderly care facilities were obtained from Shanghai elderly care service platform, divided into two categories according to their service scale. With the introduction of the improved Gaussian 2-step floating catchment area method, the accessibility of two category facilities was calculated. Through the global autocorrelation analysis, it is found that the accessibility of elderly care facilities has the characteristics of spatial agglomeration. Local autocorrelation analysis indicates the cold and hot spots in the accessibility agglomeration state of the two types of facilities, by which we summarized the characteristics of their spatial heterogeneity. It is found that for Category−Ⅰ, there is a large range of hot spots in Huangpu District. For Category−Ⅱ, the hot-spot and cold-spot areas show staggered distribution, and the two categories of hot spot distribution show a negative correlation. We conclude that the two categories are not evenly distributed in the urban area, which will lead to the low efficiency of resource allocation of elderly care facilities and have a negative impact on social fairness. This research offers a systematic method to study urban access to care services for older adults as well as a new perspective on improving social fairness.

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Section: Introduction 1backgroundmentioning

confidence: 99%

Study on Spatial Distribution Equilibrium of Elderly Care Facilities in Downtown Shanghai

Huang

Gong

White

2022

IJERPH

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“…Developing indicators to measure access is a common practice, favoring specific sectors [18]. The PSAT is a spatial model based on recommendations of variables by some authors, applied in Mexican cities with official data [19].…”

Section: Materials: Selected Spatial Models and Area Of Analysismentioning

confidence: 99%

Spatial Models and Neural Network for Identifying Sustainable Transportation Projects with Study Case in Querétaro, an Intermediate Mexican City

et al. 2022

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The construction of urban and transport indicators aims for a better diagnosis that enables technical and precise decision-making for the public administration or private investment. Therefore, it is common to make comparisons and observe which has better diagnosis results in a diversity of indexes and models. The present study made a comparative analysis of spatial models using artificial intelligence to estimate transport demand. To achieve this goal, the audit field was recollected in specific urban corridors to measure the indicators. A study case in Querétaro, an emergent city in the Mexican region known as El Bajío, is conducted. Two similar urban avenues in width and length and close to each other were selected to apply a group of spatial models, evaluating the avenues by segments and predicting the public transport demand. The resulting database was analyzed using Artificial Neural Networks. It displays specific indicators that have around 80% of correlations. The results facilitate the localization of the avenue segments with the most volume of activity, supporting interventions in urban renewal and sustainable transportation projects.

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“…Accessibility is the primary objective of transportation policy. It relates to the capability for interaction and exchange with services and facilities [4]. Transportation geography studies have been interested in it for a long time since it is a major subject of public transportation.…”

Section: Introductionmentioning

confidence: 99%

Analyzing Spatial Location Preference of Urban Activities with Mode-Dependent Accessibility Using Integrated Land Use–Transport Models

Raza

Muhammad

Zhong

et al. 2022

Land

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Accessibility is the ease of reaching opportunities (goods, services, activities, and destinations). Accessibility of desirable locations such as households and commercial locations, is typically scaffolded by land use patterns and transportation infrastructure. It can reflect people’s travel convenience, cities’ viability, sustainability, and mitigate the negative effects on the environment and public safety. Consequently, it is recognized as a fundamental principle in urban sustainable development policies worldwide. In the literature, most of the studies have used a static or partially dynamic approach with a single mode such as a car or public transportation by using conventional models. These “static” models assume that household locations are static and that transportation supply and opportunities for social practice activities are fixed in time and space, which can lead to biased or even misleading assumptions in accessibility models. Therefore, the aim of this study is to evaluate the impact of dynamic spatial accessibility through Mode-Dependent Accessibility (MDA) on the location choice behaviors of urban activities such as households and commercialin the City of Wuhan, China. This study employed the Mode-Dependent Travel Demand Model (M-TDM) to measure the impact of short-term MDA on household and commercial activities for the years 2012 and 2015. Additionally, an integrated spatial economic (ISE) model such as PECAS (Production, Exchange, Consumption, Allocation, System) in order to investigate location preferences of urban activities over space and time. Regarding household and commercial location choice, the ISE modeling results revealed that households and commercial activities are sensitive to MDA, especially using transit. The ISE method predicted that the R2 for household and commercial location choice models was 0.84 to 0.90 for transit-based accessibility, whereas the R2 for logsum-based static models was 0.48 to 0.72. In addition, their findings suggest that highly accessible locations that are well served by auto are more appealing for household and commercial activities. The findings of this study will help urban planners, transportation planners, and policymakers take into account the dynamic nature of short-term MDA when zoning and allocating urban activities and public amenities, instead of using static accessibility.

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Evolving term “accessibility” in spatial systems: Contextual evaluation of indicators

Cited by 19 publications

References 56 publications

Study on Spatial Distribution Equilibrium of Elderly Care Facilities in Downtown Shanghai

Study on Spatial Distribution Equilibrium of Elderly Care Facilities in Downtown Shanghai

Spatial Models and Neural Network for Identifying Sustainable Transportation Projects with Study Case in Querétaro, an Intermediate Mexican City

Analyzing Spatial Location Preference of Urban Activities with Mode-Dependent Accessibility Using Integrated Land Use–Transport Models

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