public double CalculateU(ITripChain tripChain)
{
ITrip facilitatedTrip = tripChain["FacilitateTrip"] as ITrip;
ISharedMode facilitatedTripMode = (ISharedMode)tripChain["SharedMode"];
//the mode data for the facilitated trip
ModeData facilitatedTripData = ModeData.Get(facilitatedTrip);
if (facilitatedTripData == null)
{
throw new XTMFRuntimeException(null, "There was no facilitated Trip Data!");
}
if (TashaRuntime == null)
{
throw new XTMFRuntimeException(null, "Tasha runtime was null!");
}
double passengersU = facilitatedTripData.U(facilitatedTripMode.ModeChoiceArrIndex);
double driversU = CalculateUofAuxTrip(tripChain);
return(passengersU + driversU);
}
public static void AssignJointTours(ITashaHousehold household)
{
Dictionary <int, List <ITripChain> > JointTours = household.JointTours;
ITashaMode rideShare = null;
int rideShareIndex = -1;
var allModes = TashaRuntime.AllModes;
var numberOfModes = allModes.Count;
for (int i = 0; i < numberOfModes; i++)
{
if ((allModes[i] is ISharedMode) && allModes[i].ModeName == "RideShare")
{
rideShare = allModes[i];
rideShareIndex = i;
}
}
//no rideshare mode?
if (rideShare == null)
{
return;
}
//go through each joint tour and assign identical modes for each tripchain in a tour if possible
foreach (var element in JointTours)
{
List <ITripChain> tripChains = element.Value;
//does a non vehicle tour exist
bool nonVehicleTour = BestNonVehicleModeSetForTour(tripChains, out IList <ITashaMode> nonVehicleModesChosen, out double nonVehicleU);
//the potential driver in this tour
ITashaPerson potentialDriver = null;
//finding potential driver who already has the car
foreach (var tripChain in tripChains)
{
if (tripChain.RequiresVehicle.Contains(rideShare.RequiresVehicle))
{
potentialDriver = tripChain.Person;
break;
}
}
//if no one has the car check if one is available
if (potentialDriver == null)
{
if (household.NumberOfVehicleAvailable(
new TashaTimeSpan(tripChains[0].StartTime, tripChains[0].EndTime), rideShare.RequiresVehicle, false) > 0)
{
foreach (var tc in tripChains)
{
if (rideShare.RequiresVehicle.CanUse(tc.Person))
{
potentialDriver = tc.Person;
break;
}
}
}
}
//No potential driver and no nonVehicle tour means that ppl in this tour have to take different modes which shouldnt happen
if ((potentialDriver == null) & (!nonVehicleTour))
{
continue;
}
double oldU = Double.MinValue;
if (nonVehicleTour)
{
oldU = nonVehicleU;
}
//no driver, go to next tour
if (potentialDriver == null)
{
continue;
}
double newU = 0.0;
bool success = true;
/*
* Now we assign the rideshare mode and if the total U of everyone using rideshare is less than that
* of a non personal vehicle mode, everyone uses rideshare
*
*/
foreach (var tripChain in tripChains)
{
foreach (var trip in tripChain.Trips)
{
ModeData md = (ModeData)trip.GetVariable("MD");
trip.Mode = rideShare;
trip.CalculateVTrip();
newU += md.U(rideShareIndex);
}
if (!tripChain.Feasible())
{
success = false;
break;
}
}
//reset modes
if ((!success || newU <= oldU) & (nonVehicleTour))
{
SetModes(tripChains, nonVehicleModesChosen);
//go to next joint trip
}
}
}