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DOI	10.1016/j.jtrangeo.2021.103107
	Measuring accessibility to grocery stores using radiation model and survival analysis
	Jiao, Junfeng; Azimian, Amin
通讯作者	Azimian, A (corresponding author), Univ Texas Austin, Sch Architecture, Urban Informat Lab, Austin, TX 78712 USA.
来源期刊	JOURNAL OF TRANSPORT GEOGRAPHY
ISSN	0966-6923
EISSN	1873-1236
出版年	2021
卷号	94
英文摘要	Measuring spatial accessibility to grocery stores and identifying food deserts have been of interest to planners and policy makers. However, measuring and quantifying accessibility in a way that relates to actual travel behaviors and preferences are challenging. This study aims to promote an existing radiation model by incorporating different transportation modes and time use diaries to provide a more realistic estimation of accessibility. We proposed a survival analysis method, such as the Cox proportional hazard model, as a novel approach to develop a cost decay function based on time use diaries. A multinomial logit model was applied to estimate the portion of people walking, traveling by car, and traveling by bus. A case study of grocery stores in Travis County, Texas, is used to illustrate the approach. The results indicate that for walking accessibility to grocery stores, the majority of zip codes fall into the very low, low, and moderate accessibility classes. Moreover, in most western zip codes transit accessibility to grocery stores is found to be very low. However, the spatial accessibility for some of such zip codes has been enhanced because of the presence of cars.
英文关键词	Accessibility Grocery stores Transportation modes Survival analysis Spatial Radiation model
类型	Article
语种	英语
收录类别	SSCI
WOS记录号	WOS:000672856800005
WOS关键词	SPATIAL ACCESSIBILITY ; FOOD ; ACCESS ; TRANSPORT ; TIME ; SUPERMARKETS ; ENVIRONMENT ; MOBILITY ; SEARCH ; CHOICE
WOS类目	Economics ; Geography ; Transportation
WOS研究方向	Business & Economics ; Geography ; Transportation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364062
作者单位	[Jiao, Junfeng; Azimian, Amin] Univ Texas Austin, Sch Architecture, Urban Informat Lab, Austin, TX 78712 USA
推荐引用方式 GB/T 7714	Jiao, Junfeng,Azimian, Amin. Measuring accessibility to grocery stores using radiation model and survival analysis[J],2021,94.
APA	Jiao, Junfeng,&Azimian, Amin.(2021).Measuring accessibility to grocery stores using radiation model and survival analysis.JOURNAL OF TRANSPORT GEOGRAPHY,94.
MLA	Jiao, Junfeng,et al."Measuring accessibility to grocery stores using radiation model and survival analysis".JOURNAL OF TRANSPORT GEOGRAPHY 94(2021).