A 1/P,L/uncert/TC,PC Two-stage Interval Stochastic Programming
(TISP) model for the planning of SWM systems under
uncertainty is developed in Maqsood and Huang [31]. The proposed
approach is applied to a case wherein a solid-waste
manager is responsible for allocating waste from cities to disposal
facilities over a planning horizon. The uncertainty affects the
amount of waste generation in each of the cities at the time when
the planning decisions must be made. The objective function of
the TISP model minimizes the expected value of the SWM system
cost in the region. The uncertainty is expressed through intervals
and probability distributions of random variables, while penalties
come into play when policies represented by allowable wasteloading
levels are violated. The solution approach reduces the TISP
model into two deterministic submodels, which correspond to the
lower and upper bounds for the desired objective-function value.