Emergency Evacuation of Hazardous Chemical Accidents Based on Diffusion Simulation

Table 4

The calculative results of different shortest path quantity.

Shortest path; quantity	Evacuation routes	Evacuation time (s)	The highest cumulative concentration; (mg/m^3)	Program execution time (s)
1	1-2-4-8-14-22-26-27-28	162	629.63	21.8
2	1-2-4-8-14-22-26-27-28; 1-2-7-8-14-22-26-27-28	108	461.06	20.3
3	1-2-4-8-14-22-26-27-28; 1-2-7-8-14-22-26-27-28; 1-3-5-9-13-17-18-23-24-28	63	304.27	19.8
4	1-2-4-8-14-22-26-27-28; 1-2-7-8-14-22-26-27-28; 1-3-5-9-13-17-18-23-24-28; 1-2-7-11-15-20-21-25-27-28	54	270.54	20.3
5	1-2-4-8-14-22-26-27-28; 1-2-7-8-14-22-26-27-28; 1-3-5-9-13-17-18-23-24-28; 1-2-7-11-15-20-21-25-27-28; 1-3-6-7-11-15-16-19-24-28	45	235.89	22.2
6	1-2-4-8-14-22-26-27-28; 1-2-7-8-14-22-26-27-28; 1-3-5-9-13-17-18-23-24-28; 1-2-7-11-15-20-21-25-27-28; 1-3-6-7-11-15-16-19-24-28; 1-3-6-10-12-16-19-24-28	36	200.47	22.3