Research on Multiobjective Location of Urban Emergency Logistics under Major Emergencies

Table 6

Calculation results of sensitivity analysis of emergency logistics centers number.

Number of emergency logistics centers	2	3	4	5
Distance between material supply points and emergency logistics centers	10.1613	13.8857	16.0276	18.7902
Distance between emergency logistics centers and material demand points	21.3107	12.5024	10.1281	8.7472
Total distance	31.472	26.3881	26.1557	27.5374
Emergency logistics center	Beijing, Tianjin	Beijing, Tianjin, Xingtai	Beijing, Tianjin, Xingtai, Tangshan	Beijing, Tianjin, Handan, Baoding, Tangshan