scholarly journals A Review of Recent Spatial Accessibility Studies That Benefitted from Advanced Geospatial Information: Multimodal Transportation and Spatiotemporal Disaggregation

2021 ◽  
Vol 10 (8) ◽  
pp. 532
Author(s):  
Jinwoo Park ◽  
Daniel W. Goldberg
Keyword(s):  
Policy Implications ◽  
Spatial Accessibility ◽  
Travel Times ◽  
Spatial Disparity ◽  
Geospatial Information ◽  
Transportation Modes ◽  
Accuracy Of Measurements ◽  
Recent Trends ◽  
Dynamic Variables ◽  
Temporal Granularity

Spatial accessibility provides significant policy implications, describing the spatial disparity of access and supporting the decision-making process for placing additional infrastructure at adequate locations. Several previous reviews have covered spatial accessibility literature, focusing on empirical findings, distance decay functions, and threshold travel times. However, researchers have underexamined how spatial accessibility studies benefitted from the recently enhanced availability of dynamic variables, such as various travel times via different transportation modes and the finer temporal granularity of geospatial data in these studies. Therefore, in our review, we investigated methodological advancements in place-based accessibility measures and scrutinized two recent trends in spatial accessibility studies: multimodal spatial accessibility and temporal changes in spatial accessibility. Based on the critical review, we propose two research agendas: improving the accuracy of measurements with dynamic variable implementation and furnishing policy implications granted from the enhanced accuracy. These agendas particularly call for the action of geographers on the full implementation of dynamic variables and the strong linkage between accessibility and policymaking.

scholarly journals Multi-Mode Two-Step Floating Catchment Area (2SFCA) Method to Measure the Potential Spatial Accessibility of Healthcare Services

2019 ◽  
Vol 8 (5) ◽  
pp. 236 ◽  
Author(s):  
Jianhua Ni ◽  
Ming Liang ◽  
Yan Lin ◽  
Yanlan Wu ◽  
Chen Wang
Keyword(s):  
Travel Behavior ◽  
Urban Areas ◽  
Catchment Area ◽  
Methodological Approach ◽  
Open Data ◽  
Healthcare Services ◽  
Spatial Accessibility ◽  
Urban Residents ◽  
Transportation Modes ◽  
Multi Mode

While great progress in the development of a methodological approach to measure the accessibility of healthcare services has been made, the exclusion of the complex multi-mode travel behavior of urban residents and a rough calculation of travel costs from the origin to the destination limit its potential for making a detailed assessment, especially in urban areas. In this paper, we aim to describe and implement an enhanced method that enables the integration of multiple transportation modes into a two-step floating catchment area (2SFCA) method to estimate accessibility. We used a travel-mode choice survey, based on distance sections, to determine the complex multi-mode travel behavior of urban residents. Taking Nanjing as a study area, we proposed complete door-to-door approaches to determine every aspect of basic transportation modes. Additionally, we processed open data to implement an accurate computing of the origin-destination (OD) time cost. We applied the enhanced method to estimate the accessibility of residents to hospitals and compared it with three single-mode 2SFCA methods. The results showed that the proposed method effectively identified more accessibility details and provided more realistic accessibility values.

Effects of spatial access to neighborhood land-use density on housing prices: Evidence from a multilevel hedonic analysis in Seoul, South Korea

2017 ◽  
Vol 46 (4) ◽  
pp. 603-625 ◽  
Author(s):  
Chang-Deok Kang
Keyword(s):  
Land Use ◽  
South Korea ◽  
Urban Form ◽  
Residential Buildings ◽  
Housing Prices ◽  
Policy Implications ◽  
Spatial Accessibility ◽  
Hedonic Price ◽  
Industrial Property ◽  
Spatial Access

Attaining a mixture and diversity of land use within walkable neighborhoods is an essential principle within contemporary urban planning and design. Empirical studies by New Urbanists argue that mixed land use, neo-traditional, and walkable neighborhoods yield socioeconomic benefits and generate a substantial premium in residential property prices. However, few studies apply reliable metrics to capture the connections among urban form, the spatial distribution of land use, and travel behavior and then value their combined effects on housing prices. To bridge this gap, this study calculates the metrics of spatial accessibility and centrality, combining street nodes, networks, and built density by land use type within walkable neighborhoods. We investigate empirically the extent to which residents value spatial accessibility and centrality to residential, commercial, office, and industrial space regarding housing prices in Seoul, South Korea in 2010. The multilevel hedonic price models used suggest that residents highly value urban settings that access larger volumes of commercial and residential buildings in densely spaced areas along dense street networks. However, homeowners respond negatively to higher access to industrial property and weakly to office space. This analysis identifies the value of spatial access to heterogeneous land-use density in housing prices and provides policy implications for land use, transportation, and urban design.

scholarly journals Hierarchical two-step floating catchment area (2SFCA) method: measuring the spatial accessibility to hierarchical healthcare facilities in Shenzhen, China

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Zhuolin Tao ◽  
Yang Cheng ◽  
Jixiang Liu
Keyword(s):  
Local Governments ◽  
Catchment Area ◽  
Spatial Accessibility ◽  
Spatial Disparity ◽  
Traditional Methods ◽  
Healthcare Facilities ◽  
Spatial Equity ◽  
Tertiary Hospitals ◽  
Different Levels

Abstract Background Spatial accessibility to healthcare facilities has drawn much attention in health geography. In China, central and local governments have aimed to develop a well-organized hierarchical system of healthcare facilities in recent years. However, few studies have focused on the measurement of healthcare accessibility in a hierarchical service delivery system, which is crucial for the assessment and implementation of such strategies. Methods Based on recent improvements in 2SFCA (two-step floating catchment area) method, this study aims to propose a Hierarchical 2SFCA (H2SFCA) method for measuring spatial accessibility to hierarchical facilities. The method considers the varied catchment area sizes, distance decay effects, and transport modes for facilities at various levels. Moreover, both the relative and absolute distance effects are incorporated into the accessibility measurement. Results The method is applied and tested in a case study of hierarchical healthcare facilities in Shenzhen, China. The results reveal that the general spatial accessibility to hierarchical healthcare facilities in Shenzhen is unevenly distributed and concentrated. The disparity of general accessibility is largely caused by the concentrated distribution of tertiary hospitals. For facilities at higher levels, average accessibility of demanders is higher, but there are also larger disparities in spatial accessibility. The comparison between H2SFCA and traditional methods reveals that traditional methods underestimate the spatial disparity of accessibility, which may lead to biased suggestions for policy making. Conclusions The results suggest that the supply of healthcare resources at primary facilities is far from sufficient. To improve the spatial equity in spatial accessibility to hierarchical healthcare facilities, various actions are needed at different levels. The proposed H2SFCA method contributes to the modelling of spatial accessibility to hierarchical healthcare facilities in China and similar environments where the referral system has not been well designed. It can also act as the foundation for developing more comprehensive measures in future studies.

Spatial Accessibility to Shopping Malls in Nanjing, China: Comparative Analysis with Multiple Transportation Modes

2020 ◽  
Vol 30 (4) ◽  
pp. 710-724
Author(s):  
Ang Li ◽  
Jie Chen ◽  
Tianlu Qian ◽  
Wenhan Zhang ◽  
Jiechen Wang
Keyword(s):  
Comparative Analysis ◽  
Spatial Accessibility ◽  
Shopping Malls ◽  
Transportation Modes

scholarly journals An Analysis of Habitual Mode Use in the Years of Rising Oil Prices

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Chansung Kim ◽  
Woo-Yung Kim ◽  
Jiyoung Park
Keyword(s):  
Public Transportation ◽  
Transportation Network ◽  
Oil Prices ◽  
State Dependence ◽  
Probit Model ◽  
Policy Implications ◽  
Vehicle Ownership ◽  
Passenger Cars ◽  
Transportation Modes ◽  
New City

The existence of state dependence derived from panel data has played a very important role in studying employment and labor policies. This study is about state dependence of the transportation sector using retrospective panel survey data. The Ministry of Land, Infrastructure and Transport of Korea has conducted the survey to monitor changes in vehicle ownership and usage nationwide and to prepare measures when oil prices tend to rise sharply. From this data, we identify the existence of state dependence on passenger cars, public transportation, and nonmotorized modes. To do this, we estimate and analyze the dynamic random effects probit model that explains the selection of each transportation mode after controlling for the unobserved individual heterogeneity. Our results indicate that despite the rise of oil prices, behavior of habitual use (i.e., state dependence) of transportation modes is found in all three modes. The amount of state dependence of nonmotorized modes was the largest, followed by passenger cars and public transportation. From the estimated models, important policy implications can be drawn from the fact that the presence of state dependence and the importance of early habit formation are important not only in nonmotorized modes but also in public transportation. In other words, if policy makers want to encourage people to use public transportation in a new city, it suggests that a sufficient and convenient public transportation network should be built before people move to the city. Once cities are built without sufficient public transportation networks and people have become accustomed to using private cars, then it will be more difficult to change their transportation modes, requiring much more social efforts and costs.

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