Dauler, Jeffrey C.; Nuttle, Henry L. W. - In: Transportation Research Part B: Methodological 21 (1987) 4, pp. 311-315
Given a group of one or more schools, each with a specific arrival time window, and the bus routes serving these schools, the problem is to create an optimum set of combinations of routes to be served by a single bus, where optimality is defined in terms of fleet size and deadhead travel...