public bool Feasible(ITrip trip)
{
IZone originalZone = trip.OriginalZone;
var o = ZoneArray.GetFlatIndex(originalZone.ZoneNumber);
IZone destinationZone = trip.DestinationZone;
var d = ZoneArray.GetFlatIndex(destinationZone.ZoneNumber);
return(Network.ValidOD(o, d, trip.TripStartTime));
}