private bool AssignPickUpAndReturnTripChains(ITashaHousehold h, ISharedMode mode, ITrip facilitateTrip, int maxWaitThreshold)
{
bool success = false;
for (int i = 0; i < h.Persons.Length; i++)
{
var p = h.Persons[i];
if (p == facilitateTrip.TripChain.Person || !mode.RequiresVehicle.CanUse(p))
{
continue;
}
foreach (var tc in p.TripChains)
{
if (tc.requiresVehicle.Contains(mode.RequiresVehicle) && tc.Trips[tc.Trips.Count - 1].TripStartTime < facilitateTrip.ActivityStartTime)
{
ITrip lastTrip = tc.Trips[tc.Trips.Count - 1];
ITrip originToIntermediatePoint = AuxiliaryTrip.MakeAuxiliaryTrip(lastTrip.OriginalZone,
facilitateTrip.OriginalZone,
lastTrip.Mode,
lastTrip.ActivityStartTime);
originToIntermediatePoint.TripChain = tc;
ITrip intermediateToDestination = AuxiliaryTrip.MakeAuxiliaryTrip(facilitateTrip.OriginalZone,
facilitateTrip.DestinationZone,
mode,
facilitateTrip.ActivityStartTime);
intermediateToDestination.TripChain = tc;
Time newEndTime = facilitateTrip.TripStartTime + intermediateToDestination.TravelTime;
if (!WithinWaitThreshold(newEndTime,
tc.EndTime, maxWaitThreshold))
{
continue;
}
//not the last trip: check for overlap with next tc
if (!(p.TripChains[p.TripChains.Count - 1] == tc))
{
//last chain
if (newEndTime > p.TripChains[p.TripChains.IndexOf(tc) + 1].StartTime)
{
continue;
}
}
//check feasibility
if (!originToIntermediatePoint.Mode.Feasible(originToIntermediatePoint))
{
continue;
}
//adding aux chain
AddAuxTripChain(p, facilitateTrip.TripChain.Person,
originToIntermediatePoint, intermediateToDestination,
facilitateTrip, mode, false, lastTrip);
success = true;
}
}
}
return(success);
}
/// <summary>
/// Create a temporary auxiliary trip with minimum information
/// </summary>
/// <param name="origin"></param>
/// <param name="destination"></param>
/// <param name="modeChoice"></param>
/// <param name="startTime"></param>
public static AuxiliaryTrip MakeAuxiliaryTrip(IZone origin, IZone destination, ITashaMode modeChoice, Time startTime)
{
AuxiliaryTrip aux;
//if ( !AuxiliaryTrip.Trips.TryTake( out aux ) )
//{
aux = new AuxiliaryTrip();
aux.Passengers = new List <ITashaPerson>();
//}
aux.OriginalZone = origin;
aux.DestinationZone = destination;
aux.Mode = modeChoice;
aux.ActivityStartTime = startTime;
return(aux);
}
private ITripChain CreatePickUpTrip(ITrip trip, ISharedMode mode, out bool success)
{
ITripChain auxTripChain = new AuxiliaryTripChain();
//go to trip
ITrip goToTrip = AuxiliaryTrip.MakeAuxiliaryTrip(trip.OriginalZone, trip.TripChain.Person.Household.HomeZone, mode.AssociatedMode, trip.ActivityStartTime);
//End Time of return trip
Time travelTimeToHome = mode.TravelTime(trip.OriginalZone, trip.TripChain.Person.Household.HomeZone, trip.TripStartTime);
Time tripEndTime = trip.ActivityStartTime + travelTimeToHome;
//return home trip
ITrip returnHomeTrip = AuxiliaryTrip.MakeAuxiliaryTrip(trip.TripChain.Person.Household.HomeZone, trip.OriginalZone, mode, tripEndTime);
//travel times generated
success = returnHomeTrip.TravelTime > Time.Zero && goToTrip.TravelTime > Time.Zero;
auxTripChain.Trips.Add(goToTrip);
auxTripChain.Trips.Add(returnHomeTrip);
return(auxTripChain);
}
private ITrip copyTrip(ITrip trip)
{
return(AuxiliaryTrip.MakeAuxiliaryTrip(trip.OriginalZone, trip.DestinationZone, trip.Mode, trip.ActivityStartTime));
}
private bool AssignFacilitateAndContinueTripChains(ITashaHousehold h, ISharedMode mode, ITrip facilitateTrip, int maxWaitThreshold)
{
bool success = false;
for (int pIt = 0; pIt < h.Persons.Length; pIt++)
{
var p = h.Persons[pIt];
//is this person the same person as the trip we are looking to facilitate?
//can this person use the specified vehicle?
if (p == facilitateTrip.TripChain.Person || !mode.RequiresVehicle.CanUse(p))
{
continue;
}
var numberOfTripChains = p.TripChains.Count;
for (int i = 0; i < numberOfTripChains; i++)
{
ITrip originToIntermediatePoint;
ITrip intermediateToDestination;
//if this trip chain is part of a joint trip chain then it can't be used
if (p.TripChains[i].JointTrip)
{
continue;
}
//look for the first trip chain with a start time after the passengers start time
//determine if it is feasible
if (p.TripChains[i].Trips[0].ActivityStartTime >= facilitateTrip.ActivityStartTime)
{
if (i == 0) // first trip of the day...
{
//trip uses vehicle needed for specified shared mode
if (p.TripChains[i].requiresVehicle.Contains(mode.RequiresVehicle))
{
originToIntermediatePoint = AuxiliaryTrip.MakeAuxiliaryTrip(h.HomeZone, facilitateTrip.DestinationZone, mode, facilitateTrip.ActivityStartTime);
//travel time from the facilitated trips destination to the trips destination
Time travelTime =
p.TripChains[i].Trips[0].Mode.TravelTime(facilitateTrip.DestinationZone,
p.TripChains[i].Trips[0].DestinationZone, p.TripChains[i].Trips[0].TripStartTime);
//new start time is drop offs start time plus additional time to get to destination
Time newStartTime = travelTime + originToIntermediatePoint.ActivityStartTime;
intermediateToDestination = AuxiliaryTrip.MakeAuxiliaryTrip(facilitateTrip.DestinationZone,
p.TripChains[i].Trips[0].DestinationZone,
p.TripChains[i].Trips[0].Mode,
newStartTime);
intermediateToDestination.TripChain = p.TripChains[i];
//if time between drop off and first trip is too long it is invalid
if (!intermediateToDestination.Mode.Feasible(intermediateToDestination) ||
!WithinWaitThreshold(intermediateToDestination.ActivityStartTime,
p.TripChains[i].Trips[0].ActivityStartTime,
maxWaitThreshold))
{
continue;
}
AddAuxTripChain(p, facilitateTrip.TripChain.Person,
originToIntermediatePoint, intermediateToDestination,
facilitateTrip, mode, true, p.TripChains[i].Trips[0]);
success = true;
}
}
else
{
if (p.TripChains[i].TripChainRequiresPV)
{
//determine if they have been at home enough long enough
//to allow for total driving time and to get to their destination
Time homeTime = p.TripChains[i - 1].EndTime;
originToIntermediatePoint = AuxiliaryTrip.MakeAuxiliaryTrip(h.HomeZone, facilitateTrip.DestinationZone, mode, facilitateTrip.ActivityStartTime);
Time travelTime = p.TripChains[i].Trips[0].Mode.TravelTime(facilitateTrip.DestinationZone,
p.TripChains[i].Trips[0].DestinationZone, p.TripChains[i].Trips[0].TripStartTime);
Time newStartTime = travelTime + originToIntermediatePoint.ActivityStartTime;
intermediateToDestination = AuxiliaryTrip.MakeAuxiliaryTrip(facilitateTrip.DestinationZone,
p.TripChains[i].Trips[0].DestinationZone,
p.TripChains[i].Trips[0].Mode,
newStartTime);
intermediateToDestination.TripChain = p.TripChains[i];
if (intermediateToDestination.TravelTime.ToFloat() == 0f ||
originToIntermediatePoint.TravelTime.ToFloat() == 0f)
{
continue; //travel times do not exist; skip
}
if (originToIntermediatePoint.TripStartTime > (homeTime) &&
WithinWaitThreshold(intermediateToDestination.ActivityStartTime,
p.TripChains[i].Trips[0].ActivityStartTime,
maxWaitThreshold))
{
if (!intermediateToDestination.Mode.Feasible(intermediateToDestination))
{
continue;
}
//adding aux trip chain to driver
AddAuxTripChain(p, facilitateTrip.TripChain.Person,
originToIntermediatePoint, intermediateToDestination,
facilitateTrip, mode, true, p.TripChains[i].Trips[0]);
success = true;
}
}
else
{
//cant drive.. since no personal vehicle
break;
}
}
}
}
}
return(success);
}
