Evaluation of Emergency Shelter Accessibility Based on the Two-step Floating Catchment Area Method in Changchun

Zhu, Xiaomeng; Tong, Zhijun; Luo, Xiaolong; Li, Xiangqian; Lin, Panpan; Zhang, Jiquan

doi:10.2991/rac-18.2018.102

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2SFCA provides services simultaneously for multiple supply facilities that meet the threshold conditions, not only calculating the supply-demand ratio of the supply facility but also quantifying the availability of the demand object. In recent years, an increasing number of scholars improved the 2SFCA method in studies on the following types of public service facilities: medical facilities [15][16][17], emergency shelters [18], schools [19], parks [20,21], food deserts [22,23], and parking lots [24]. General hospitals are important medical service facilities in urban cities, so comprehensively evaluating the accessibility to general hospitals needs to take into account the supply-demand ratio and travel distance/travel time impedance.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Spatial Accessibility to General Hospitals with Navigation and Social Media Location Data: A Case Study in Nanjing

Qian

Chen

et al. 2020

IJERPH

View full text Add to dashboard Cite

Spatial accessibility to general hospitals is an important indicator of the convenience and ability of residents to obtain medical services. Therefore, developing a model for measuring accessibility to general hospitals by multiple transportation modes is necessary. In this study, considering that the increase in travel time will reduce the attractiveness of general hospitals, we used the Two-Step Floating Catchment Area with the Gaussian attenuation function, in which the supply was presented by capacity of hospitals (i.e., number of beds), and the demand was presented by population in each grid derived with social media data mapping real-time locations of active users. The Gaussian Two-Step Floating Catchment Area (Ga2SFCA) simulates the attenuation tendency of the general hospital service capabilities over transit time. To obtain a highly precise understanding of accessibility to hospitals, transit time on Baidu Maps’ navigation service was used as the impedance condition, and the study area was divided into 1 square kilometer grids as the basic unit of research. Taking Nanjing city as a case study, it is found that the accessibility distribution shape changes from a multi-centered circular pattern to a multi-peak distribution, as the time threshold increases. By comparing the accessibility among 11 districts varying from main urban area to suburbs, the accessibility to general hospitals in Nanjing is significantly regionally unbalanced in both travel modes. By calculating and mapping the Modal Accessibility Gap (MAG) of the two travel modes, different modes of transportation resulted in different general hospital accessibility distributions. Generally, private car is superior in access to general hospitals to public transit in most areas. In the central area, public traffic may not contribute to the access to medical services as much as we thought, rather it plays a role in areas far from hospitals along metro lines and bus routes.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluating Spatial Accessibility to General Hospitals with Navigation and Social Media Location Data: A Case Study in Nanjing

Qian

Chen

et al. 2020

IJERPH

View full text Add to dashboard Cite

show abstract

Evaluation of Emergency Shelter Accessibility Based on the Two-step Floating Catchment Area Method in Changchun

Abstract: The balanced layout of emergency shelters, which can be measured by spatial accessibility, is an important componentof the urban disaster prevention and mitigation system. Among the

Cited by 1 publication

References 0 publications

Evaluating Spatial Accessibility to General Hospitals with Navigation and Social Media Location Data: A Case Study in Nanjing

Evaluating Spatial Accessibility to General Hospitals with Navigation and Social Media Location Data: A Case Study in Nanjing

Contact Info

Product

Resources

About