Set of indices
$j$	Index of ${\mathit{DC}}_{j}j=1,\cdots ,J$
$i$	Index of $\mathit{RCWsi}=1,\cdots ,I$
$p$	Index of relief items $p=1,\cdots ,P$
$h$	Index of $\mathit{THsh}=1,\cdots ,H$
$k$	Index of $\mathit{ECsk}=1,\cdots ,K$
$m$	Index of $\mathit{AAsm}=1,\cdots ,M$
$t$	Index of periods $t=1,\cdots ,T$
$x$	Index of periods $x=1,\cdots ,X$
$s$	Index of scenarios $s=1,\cdots ,S$
$f$	Index of fleet types $f=1,\cdots ,F$
Parameters
${\mathit{IHC}}_{\mathit{pj}}^{}$	Inventory holding cost at ${\mathit{DC}}_j$ for product $p$
${\mathit{ICD}}_j$	Institution cost of ${\mathit{DC}}_j$
${\mathit{ICH}}_h$	Institution cost of ${\mathit{TH}}_h$
${\mathit{TC}}_{\mathit{pf}}^{\mathit{ts}}$	Transportation cost for product $p$ using fleet type $f$ at period $t$(tomans/(km. kg))in scenario $s$
${\mathit{PCS}}_{\mathit{pk}}$	Penalty cost of shortage of product $p$ in ${\mathit{EC}}_k$
${\mathit{PCSu}}_{\mathit{pk}}$	Penalty cost of surplus of product $p$ in ${\mathit{EC}}_k$
$d_{\mathit{ijfs}}$	Distance between ${\mathit{RCW}}_i$ and ${\mathit{DC}}_j$ with fleet type $f$ in scenario $s$
$d_{\mathit{jkfs}}$	Distance between ${\mathit{DC}}_j$ and ${\mathit{EC}}_k$ with fleet type $f$ in scenario $s$
$d_{\mathit{jhfs}}$	Distance between ${\mathit{DC}}_j$ and ${\mathit{TH}}_h$ with fleet type $f$ in scenario $s$
${\mathit{PC}\stackrel{´}{S}}_{\mathit{ph}}$	Penalty cost of shortage of product $p$ in ${\mathit{TH}}_h$
${\mathit{PCSu}}_{\mathit{ph}}$	Penalty cost of surplus of product $p$ in ${\mathit{TH}}_h$
${\mathit{imp}}_{\mathit{pk}}$	Importance of product $p$ at ${\mathit{EC}}_k$
${\mathit{im}\stackrel{´}{p}}_{\mathit{ph}}$	Importance of product $p$ at ${\mathit{TH}}_h$
${\mathit{CapF}}_f$	Capacity of fleet type $f$
${\mathit{Cap}\stackrel{´}{H}}_{\mathit{hs}}$	Capacity of ${\mathit{TH}}_h$ in scenario s
${\mathit{CapD}}_{\mathit{js}}$	Capacity ${\mathit{DC}}_j$ in scenario $s$
${\mathit{CapEC}}_{\mathit{ks}}$	Capacity of ${\mathit{EC}}_k$ in scenario $s$
$M$	Big M
${\mathit{Vol}}_p$	Volume of product $p$
${\mathit{As}}_f$	Average speed of fleet type $f$
${\alpha }_p$	Consumption coefficient of product $p$
${\mathit{PS}}_s$	Probability of occurrence of scenario $s$
${\stackrel{´}{t}}_{\mathit{mhs}}$	Transferring time of patients from ${\mathit{AA}}_m$ to ${\mathit{TH}}_h$ in scenario $s$
$t_{\mathit{mks}}$	Transferring time of patients from ${\mathit{AA}}_m$ to ${\mathit{EC}}_k$ in scenario $s$
${\mathit{MDC}}_s$	Maximum number of distribution centers that can be instituted under scenario s
${\mathit{MNF}}_f$	Maximum number of fleet type f that can be used
$P_1$	infection rate of COVID-19 in AAs
$P_2$	infection rate of COVID-19 in ECs
${\mathit{Op}}_m^{\mathit{ts}}$	Total population in ${\mathit{AA}}_m$ that should be transferred to $\mathit{EC}$ s at period $t$ in scenario $s$
${\mathit{PCO}}_m^{\mathit{ts}}$	Total population in ${\mathit{AA}}_m$ that should be transferred to ${\mathit{TH}}_h$ at period $t$ in scenario $s$
${\mathit{PA}}_m^{\mathit{ts}}$	Population should be evacuated in ${\mathit{AA}}_m$ at period t in scenario $s$
Decision variables
$Q_{\mathit{pjhf}}^{\mathit{ts}}$	Quantity of delivered product p from ${\mathit{DC}}_j$ to ${\mathit{TH}}_h$ using fleet $f$ at period $t$ in scenario $s$
$Q_{\mathit{pijf}}^{\mathit{ts}}$	Quantity of delivered product $p$ from ${\mathit{RCL}}_i$ to ${\mathit{DC}}_j$ using fleet $f$ at period $t$ in scenario $s$
$Q_{\mathit{pjkf}}^{\mathit{ts}}$	Quantity of delivered product $p$ from ${\mathit{DC}}_j$ to ${\mathit{EC}}_k$ using fleet $f$ at period $t$ in scenario $s$
${\mathit{numF}}_{\mathit{fij}}^{\mathit{ts}}$	Number of fleet type $f$ from ${\mathit{RCL}}_i$ to ${\mathit{DC}}_j$ at period $t$ in scenario $s$
${\mathit{num}\stackrel{´}{F}}_{\mathit{fij}}^{\mathit{ts}}$	Number of fleet type $f$ from ${\mathit{DC}}_j$ to ${\mathit{EC}}_k$ at period $t$ in scenario $s$
${\mathit{num}\stackrel{´}{\stackrel{´}{F}}}_{\mathit{fij}}^{\mathit{ts}}$	Number of fleet type $f$ from ${\mathit{DC}}_j$ to ${\mathit{TH}}_h$ at period $t$ in scenario $s$
$I_{\mathit{pj}}^{\mathit{ts}}$	Inventory level of product p in ${\mathit{DC}}_j$ at period $t$ in scenario $s$
${\mathit{TH}}_{\mathit{hs}}$	(Binary variable) = 1, if ${\mathit{TH}}_h$ is opened in scenario $s$; ow = 0
${\mathit{EC}}_{\mathit{ks}}$	(Binary variable) = 1, if ${\mathit{EC}}_k$ is used in scenario $s$; ow = 0
${\mathit{TDC}}_{\mathit{js}}$	(Binary variable) = 1, if ${\mathit{DC}}_j$ is opened in scenario $s$;ow = 0
$Z_{\mathit{phts}}^2$	Surplus amount of product $p$ in ${\mathit{TH}}_h$ at period $t$ in scenario $s$
$Z_{\mathit{phts}}^3$	Shortage amount of product $p$ in ${\mathit{TH}}_h$ at period t in scenario $s$
${\stackrel{´}{Z}}_{\mathit{pkts}}^2$	Surplus amount of product $p$ in ${\mathit{EC}}_k$ at period $t$ in scenario $s$
${\stackrel{´}{Z}}_{\mathit{pkts}}^3$	Shortage amount of product $p$ in ${\mathit{EC}}_k$ at period $t$ in scenario $s$
${\stackrel{´}{P}}_{\mathit{mh}}^{\mathit{ts}}$	Number of symptomatic patients transferred from ${\mathit{AA}}_m$ to ${\mathit{TH}}_h$ at period $t$ in scenario $s$
$P_{\mathit{mk}}^{\mathit{ts}}$	Number of affected people transferred from ${\mathit{AA}}_m$ to ${\mathit{EC}}_k$ at period t in scenario $s$
${\stackrel{´}{\stackrel{´}{p}}}_{\mathit{kh}}^{\mathit{ts}}$	Number of infected cases in ${\mathit{EC}}_k$ detected by IoT system and transferred to ${\mathit{TH}}_h$ at period $t$ in scenario $s$
${\stackrel{´}{\stackrel{´}{\mathit{Pk}}}}_k^{\mathit{xs}}$	Number of people entering in ${\mathit{EC}}_k$ at period $x$ in scenario $s$ from $\mathit{AA}$ s
${\mathit{PC}}_h^{\mathit{xs}}$	Number of people entering in ${\mathit{TH}}_h$ at period $x$ in scenario $s$ from $\mathit{AA}$ s
${\mathit{RQC}}_{\mathit{pkts}}$	Required demand of product $p$ by ${\mathit{EC}}_k$ at period $t$ in scenario $s$
${\mathit{RQH}}_{\mathit{phts}}$	Required demand of product $p$ by ${\mathit{TH}}_h$ at period $t$ in scenario $s$