$d_i^t$	Quantity of a resource type t required by a demand point i
$ca{p}_t^v$	Capacity of vehicle v for carrying expendable and/or non-expendable resources
$ca{p}_k^t$	Capacity of RC k for expendable and/or non-expendable resources
$t{r}_{ij}^v$	Travel time required for vehicle v to transport resources from i to j
$n{p}_i^t$	Processing time for recovery operations at demand point i for a non-expendable resource $t\in R$
$c{p}_i^t$	Reduction factor to adjust the normal processing time of non-expendable resource t per extra resources at i
$w_i$	Severity level of demand point i
m	An arbitrary big positive number