Such representations are common in computer vision and image interpretation, building design, timetabling or gene-nets.
Railway planning is a complex activity which is usually decomposed into several stages, traditionally network design, line design, timetabling, rolling stock, and staffing.
Two nonlinear non-convex programming models are formulated to design timetables with the objective of minimizing the total passenger travel time (TTT) under the constraints of train operations, and passenger boarding and alighting processes.
Indeed, public transit has provided interesting and challenging problems to operations research, while operations research has been successful at solving efficiently several important public transit problems for example, network design, timetabling, vehicle scheduling, and crew scheduling.
Launch is foreseen to occur in 2018, as the designed timetable, and the mission would last about 10 years, bringing back a 150 g subsurface sample within a small re-entry capsule.
Decision-makers (i.e., schedulers) intend to synchronize vehicle timetable of lines at transfer nodes to facilitate passenger transfers while being concerned with the impacts of re-designed timetable on the regularity of existing timetable and the accustomed trip plans of passengers.
Thanks to applying the above-mentioned separation rules in addition to designing timetable(s) on particular lines/routes and the entire HSR network accordingly, the HSR systems are free of congestion and consequent delays due to the direct mutual influence of trains on each other while 'competing' to use the same segment of given lines/routes at the same time.
Specifically, it investigates the problem of designing timetables for nurses working in Kuwaiti health care units that operate around the clock.
They investigate the problem of designing timetables for the nurses working in Kuwaiti health care units.
Alkhabbaz and M'Hallah (2013) propose a mixed integer program to solve the mathematical model for the case of a specific health care unit using an off-the-shelf optimizer to investigate the problem of designing timetables for nurses working in Kuwaiti health care units that operate around the clock.
