TY  - JOUR
PY  - 2015//
TI  - An enhanced variable two-step floating catchment area method for measuring spatial accessibility to residential care facilities in Nanjing
JO  - International journal of environmental research and public health
A1  - Ni, Jianhua
A1  - Wang, Jinyin
A1  - Rui, Yikang
A1  - Qian, Tianlu
A1  - Wang, Jiechen
SP  - 14490
EP  - 14504
VL  - 12
IS  - 11
N2  - Civil administration departments require reliable measures of accessibility so that residential care facility shortage areas can be accurately identified. Building on previous research, this paper proposes an enhanced variable two-step floating catchment area (EV2SFCA) method that determines facility catchment sizes by dynamically summing the population around the facility until the facility-to-population ratio (FPR) is less than the FPR threshold (FPRT). To minimize the errors from the supply and demand catchments being mismatched, this paper proposes that the facility and population catchment areas must both contain the other location in calculating accessibility. A case study evaluating spatial accessibility to residential care facilities in Nanjing demonstrates that the proposed method is effective in accurately determining catchment sizes and identifying details in the variation of spatial accessibility. The proposed method can be easily applied to assess other public healthcare facilities, and can provide guidance to government departments on issues of spatial planning and identification of shortage and excess areas.<p />  <p>Language: en</p>
LA  - en
SN  - 1661-7827
UR  - http://dx.doi.org/10.3390/ijerph121114490
ID  - ref1
ER  -