Input values: T: the set of time slots during evacuation; ${\sigma }_{lt}$: the temperature on link $l\in L$ at time slot t $\in T$; $b_{lt}$: the link cost on link $l\in L$ at time slot t $\in T$; Decision variables: $z_{lt}$: =1 if link l $\in L$ is on the selected evacuation path at time slot t $\in T$; =0, otherwise.