Given the flight schedule of an airline, the fleet assignment problem consists of determining the aircraft type to assign to each flight leg in order to maximize the total expected profits while satisfying aircraft routing and availability constraints. The profit for a leg is a function of the...

In this paper, we present a sophisticated model and a heuristic solution approach based on mathematical optimization for the assignment of locomotives and cars to passenger trains. Given a periodic schedule and a fleet composed of several types of locomotives and cars, our approach determines a...