Albino, L.

problem algorithm crew base column instance constraint network train weekday driver number scheduling result solution generation transfer time column generation guard crew bases schedule duration abbink crew member stock transfer crew scheduling problem experiment crew schedules percentage huisman lucia railway table member research pricing problem process pricing system node 4 weekend length practice paper deviation minute netherland siscog subnetwork a-train improvement amount passenger netherlands railways connection approach week instances detail knowledge planning dutch railway operator crew members transfer times crew scheduling process operations research column pool cols fi rst multiplier return crew scheduling problems results show stock knowledge heuristic night optimisation optimization trains need route e.j.w path problem