Network representation Topologically sorted time-line network Nodes Flght arrivals/ departures(time and space) Arcs Flight arcs: one arc for each scheduled flight Ground arcs: allow aircraft to sit on the ground between flights 2/212021 Barnhart 1.206J/16.77J/ESD. 15J2/21/2021 Barnhart 1.206J/16.77J/ESD.215J 8 Network Representation • Topologically sorted time-line network – Nodes: • Flight arrivals/ departures (time and space) – Arcs: • Flight arcs: one arc for each scheduled flight • Ground arcs: allow aircraft to sit on the ground between flights