Table 3.

Parameters for the agent-based indoor SARS-CoV-2 transmission model.

Model parameter	Value (s)/Distribution	Reference (s)
Human-related parameters
Expectoration height	1.7 m	[44]
Interaction intensity (A)	2000 N/m	[74]
Interaction range (B)	0.5 m	[75]
Relaxation time ($T_{\alpha }$)	0.5 s	[75]
Expected speed (ve)	ve ∼ N (1.29, 0.262) m/s	[76]
Pedestrian mass (mi)	mi ∼ N (65, 52) kg	[77]
Anisotropy index (${\lambda }_i$)	0	[77]
Cough frequency	0.19 coughs/min	[45,46]
Inhalation rate	0.023 m3 air/min	[55,56]
Virus-related parameters
Droplets number (Dn)	ln Dn ∼ N (9.7 × 105, (3.9 × 105)2)/expectoration	[33,49]
Droplets spread angle-coughing (ωcoughing)	35°	[53,54]
Droplets spread angle-not coughing (ωnot-coughing)	63.5°	[53,54]
Droplets spread distance-coughing (Dd-coughing)	Dd-coughing ∼ N (5, 0.2562) m	[51]
Droplets spread distance-not coughing (Dd-not-coughing)	Dd-not-coughing ∼ N (0.55, 0.0682) m	[52]
Viruses density in droplets (ρvirus)	2.35 × 109 viruses/mL	[58,59]
Transfer efficiency from surfaces to hands (Tsh)	3 × 10−3	[56,60,61]
Transfer efficiency from hands to facial membranes (Thf)	0.35	[62]
Hand surface area (Ahand)	10 cm2	[62]
Touch frequency with counter surface (Fsh)	0.2 times/min	[64,65]
Touch frequency with target facial membranes (Fhf)	1.6 × 10−1 times/min	[66,67]
Viruses' decay rate in the air	1.27 × 10−4/sec	[25,69]
Viruses' decay rate on the plastic	2.04 × 10−5/sec	[25,70]
Viruses' decay rate on the steel	2.47 × 10−5/sec	[25,70]
Infection risk of a single virion (k)	4.1 × 102	[72]
Diffusion rate	1.5 × 10−3 m3/min	[68]
Building-related parameters
Size of spatial cell	0.5 m × 0.5 m	–