Study on site selection of emergency medical facilities for rural public health emergencies

doi:10.16265/j.cnki.issn1003-3033.2023.01.0137

Abstract

Abstract:

In order to improve the scientificity of site selection decision-making of emergency medical facilities for rural public health emergencies, based on the characteristics of public health emergencies with rapid spread and strong harmfulness of corona virus disease 2019(COVID-19), according to the design standards of emergency medical facilities, taking into account the characteristics of small rural medical budget and rugged emergency roads, firstly, six influencing factors of engineering geological conditions, unit cost, infection rate, arrival time, site scale and service coverage area of alternative sites of facilities were selected. The Entropy value method(EVM) method and analytic hierarchy process(AHP) method were effectively combined to determine the weight of influencing factors. Secondly,a multi-objective location model considering the minimum sum of the distance from patients to emergency medical facilities and the optimal comprehensive evaluation value of the selected emergency medical facilities was established. Then, an IPSO algorithm was designed to solve the model and get the location decision. Finally, some villages in Tianmen city were selected for empirical analysis to verify the effectiveness of the model algorithm. The results show that infection rate and unit cost are the main influencing factors for the construction of emergency medical facilities. IPSO algorithm selects three emergency medical facilities, which can meet the treatment needs of patients in eight villages, and ensure that patients can seek medical treatment within 4-7 minutes,providing guarantee for efficient epidemic prevention and control activities.

Key words: village, public health emergency, emergency medical facilities, multi-objective planning, improved particle swarm optimization(IPSO) algorithm

AN Min, TENG Mingyue, AN Hui, YANG Wenjing. Study on site selection of emergency medical facilities for rural public health emergencies[J]. China Safety Science Journal, 2023, 33(1): 198-205.

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一级指标	二级指标	指标说明
时空因素	工程地质条件	对应急医疗设施有影响的岩土类型、地形地貌和地质构造因素
	服务覆盖区域数	较均匀地分布,使得人员能够就近就医或隔离
	抵达时间/min	需在应急医疗设施的覆盖范围内,患者抵达应急医疗设施的最短时间
人口因素	场所规模/人数	应急医疗设施容量应满足所服务范围内隔离人数的需求
人口因素	传染率/%	根据感染人数计算传染率
经济因素	单位成本/(元·m^-2)	包括单位面积的土地征用、建设施工及医疗设备等成本

村庄	到各应急医疗点距离/m						感染人数	隔离人数	人口总数
村庄	A	B	C	D	E	F	感染人数	隔离人数	人口总数
1	299.57	399.42	948.63	874.45	1 597.70	2 146.90	20	478	2 197
2	898.70	349.50	349.50	549.21	1 048.49	1 397.98	18	433	2 445
3	2 096.98	1 547.77	1 198.27	748.92	1 198.27	349.50	20	708	3 124
村庄	到各应急医疗点距离/m						感染人数	隔离人数	人口总数
村庄	A	B	C	D	E	F	感染人数	隔离人数	人口总数
4	399.42	249.64	549.21	948.63	1 148.34	1 797.41	17	18	2 337
5	1 098.42	848.78	349.50	649.06	449.35	1 298.13	12	122	2 205
6	1 847.34	1 597.70	1 048.49	1 098.42	349.50	1 198.27	14	324	1 815
7	647.62	1 248.20	948.63	599.14	249.64	798.85	12	53	2 064
8	1 897.26	1 397.98	649.21	549.21	898.70	374.46	12	88	1 636

因素	A	B	C	D	E	F
服务覆盖区域个数	3	3	2	2	3	3
抵达时间权重	0.52	0.48	0.52	0.61	0.55	0.54
场所规模/人	650	820	400	540	680	730
传染率/%	0.3	0.4	0.3	0.2	0.2	0.1
单位成本/ (元·m^-2)	7 800	11 500	3 200	6 500	8 400	9 200