Ghiani et al. [10] study the problem of minimizing the total
number of collection sites to be located in a SWM system, chosen
among a set of candidate locations. Such an objective ensures not
only the reduction of the impact due to the presence of the
collection bins close to the residential sites, but also the reduction
of the overall cost related to the collection phase. The proposed
model determines also the optimal allocation of citizens to
collection sites by ensuring that each citizen is serviced by a
collection site which is within a threshold distance from his/her
home. Such a condition is achieved through peculiar constraints
added to the 1/C/–/– model.
2.2.5. Models with uncertainty
Very few papers deal with the uncertainty on the waste generation.
Such papers typically address the waste-management
planning problem to minimize the associated treatment costs
through interval analysis, chance-constrained, stochastic, and
fuzzy programming approaches, where dynamic aspects and
economies of scale are modeled