private void RunModel(ChoiceProbabilityCalculator choiceProbabilityCalculator, IHouseholdDayWrapper householdDay, ITourWrapper tour,
                              IParcelWrapper destinationParcel, int householdCars,
                              int constrainedMode, int constrainedArrivalTime, int constrainedDepartureTime, HTourModeTime choice = null)
        {
            IHouseholdWrapper household = tour.Household;
            IPersonWrapper    person    = tour.Person;
            IPersonDayWrapper personDay = tour.PersonDay;

            Framework.DomainModels.Models.IHouseholdTotals householdTotals = household.HouseholdTotals;

            // household inputs
            int childrenUnder5         = householdTotals.ChildrenUnder5;
            int childrenAge5Through15  = householdTotals.ChildrenAge5Through15;
            int nonworkingAdults       = householdTotals.NonworkingAdults;
            int retiredAdults          = householdTotals.RetiredAdults;
            int onePersonHouseholdFlag = household.IsOnePersonHousehold.ToFlag();
            int twoPersonHouseholdFlag = household.IsTwoPersonHousehold.ToFlag();
            //var householdCars = household.VehiclesAvailable; MABADD now an input parameter
            int noCarsInHouseholdFlag   = household.GetFlagForNoCarsInHousehold(householdCars);
            int carsLessThanDriversFlag = household.GetFlagForCarsLessThanDrivers(householdCars);
            int carsLessThanWorkersFlag = household.GetFlagForCarsLessThanWorkers(householdCars);
            int income0To25KFlag        = household.Has0To25KIncome.ToFlag();
            int income100KPlusFlag      = household.Has100KPlusIncome.ToFlag();

            // person inputs
            int partTimeWorkerFlag     = person.IsPartTimeWorker.ToFlag();
            int nonworkingAdultFlag    = person.IsNonworkingAdult.ToFlag();
            int universityStudentFlag  = person.IsUniversityStudent.ToFlag();
            int retiredAdultFlag       = person.IsRetiredAdult.ToFlag();
            int drivingAgeStudentFlag  = person.IsDrivingAgeStudent.ToFlag();
            int fulltimeWorkerFlag     = person.IsFulltimeWorker.ToFlag();
            int childAge5Through15Flag = person.IsChildAge5Through15.ToFlag();
            int childUnder5Flag        = person.IsChildUnder5.ToFlag();
            int maleFlag              = person.IsMale.ToFlag();
            int ageUnder30Flag        = person.AgeIsLessThan30.ToFlag();
            int ageBetween51And98Flag = person.AgeIsBetween51And98.ToFlag();
            int adultFlag             = person.IsAdult.ToFlag();

            // person-day inputs
            int homeBasedToursOnlyFlag          = (personDay == null) ? 1 : personDay.OnlyHomeBasedToursExist().ToFlag();
            int firstSimulatedHomeBasedTourFlag = (personDay == null) ? 1 : personDay.IsFirstSimulatedHomeBasedTour().ToFlag();
            int laterSimulatedHomeBasedTourFlag = (personDay == null) ? 0 : personDay.IsLaterSimulatedHomeBasedTour().ToFlag();
            int totalStops              = (personDay == null) ? 0 : personDay.GetTotalStops();
            int totalSimulatedStops     = (personDay == null) ? 0 : personDay.GetTotalSimulatedStops();
            int escortStops             = (personDay == null) ? 0 : personDay.EscortStops;
            int homeBasedTours          = (personDay == null) ? 1 : personDay.HomeBasedTours;
            int simulatedHomeBasedTours = (personDay == null) ? 0 : personDay.SimulatedHomeBasedTours;

            // tour inputs
            int            escortTourFlag           = tour.IsEscortPurpose().ToFlag();
            int            shoppingTourFlag         = tour.IsShoppingPurpose().ToFlag();
            int            mealTourFlag             = tour.IsMealPurpose().ToFlag();
            int            socialTourFlag           = tour.IsSocialPurpose().ToFlag();
            int            personalBusinessTourFlag = tour.IsPersonalBusinessPurpose().ToFlag();
            int            recreationTourFlag       = tour.IsRecreationPurpose().ToFlag();
            int            medicalTourFlag          = tour.IsMedicalPurpose().ToFlag();
            IParcelWrapper originParcel             = tour.OriginParcel;
            //var destinationParcel = tour.DestinationParcel; MABADD now an input parameter
            int jointTourFlag        = (tour.JointTourSequence > 0) ? 1 : 0;
            int partialHalfTour1Flag = (tour.PartialHalfTour1Sequence > 0) ? 1 : 0;
            int partialHalfTour2Flag = (tour.PartialHalfTour2Sequence > 0) ? 1 : 0;
            int fullHalfTour1Flag    = (tour.FullHalfTour1Sequence > 0) ? 1 : 0;
            int fullHalfTour2Flag    = (tour.FullHalfTour2Sequence > 0) ? 1 : 0;
            int parentTourMode       = tour.ParentTour == null ? 0 : tour.ParentTour.Mode;


            // remaining inputs
            // Higher priority tour of 2+ tours for the same purpose
            int highPrioritySameFlag = (personDay == null) ? 1 : (tour.GetTotalToursByPurpose() > tour.GetTotalSimulatedToursByPurpose() && tour.GetTotalSimulatedToursByPurpose() == 1).ToFlag();

            // Lower priority tour(s) of 2+ tours for the same purpose
            int lowPrioritySameFlag = (personDay == null) ? 0 : (tour.GetTotalSimulatedToursByPurpose() > 1).ToFlag();

            // Higher priority tour of 2+ tours for different purposes
            int highPriorityDifferentFlag = (personDay == null) ? 0 : (personDay.IsFirstSimulatedHomeBasedTour() && personDay.HomeBasedToursExist()).ToFlag() * (1 - highPrioritySameFlag);

            // Lower priority tour of 2+ tours for different purposes
            int lowPriorityDifferentFlag = (personDay == null) ? 0 : (personDay.IsLaterSimulatedHomeBasedTour() && personDay.HomeBasedToursExist()).ToFlag() * (1 - lowPrioritySameFlag);

            ITimeWindow timeWindow = (householdDay == null) ? new TimeWindow() : tour.GetRelevantTimeWindow(householdDay);
            int         totalMinutesAvailableInDay = timeWindow.TotalAvailableMinutes(1, 1440);


            int bigPeriodCount = DayPeriod.H_BIG_DAY_PERIOD_TOTAL_TOUR_TIMES;
            int nPeriodCombs   = bigPeriodCount * (bigPeriodCount + 1) / 2;


            //set components
            int componentIndex = 0;
            int periodComb     = -1;

            bool useTimeComponents = Global.Configuration.IsInEstimationMode || constrainedArrivalTime == 0 || constrainedDepartureTime == 0;

            if (useTimeComponents)
            {
                for (int arrivalPeriodIndex = 0; arrivalPeriodIndex < bigPeriodCount; arrivalPeriodIndex++)
                {
                    MinuteSpan arrivalPeriod = DayPeriod.HBigDayPeriods[arrivalPeriodIndex];
                    int        arrivalPeriodAvailableMinutes = timeWindow.TotalAvailableMinutes(arrivalPeriod.Start, arrivalPeriod.End);

                    for (int departurePeriodIndex = arrivalPeriodIndex; departurePeriodIndex < bigPeriodCount; departurePeriodIndex++)
                    {
                        MinuteSpan departurePeriod = DayPeriod.HBigDayPeriods[departurePeriodIndex];
                        int        departurePeriodAvailableMinutes = timeWindow.TotalAvailableMinutes(departurePeriod.Start, departurePeriod.End);

                        if (arrivalPeriod == departurePeriod)
                        {
                            componentIndex = arrivalPeriodIndex;
                            choiceProbabilityCalculator.CreateUtilityComponent(componentIndex);
                            ChoiceProbabilityCalculator.Component arrivalComponent = choiceProbabilityCalculator.GetUtilityComponent(componentIndex);

                            if (arrivalPeriodAvailableMinutes > 0)
                            {
                                double hoursArrival = arrivalPeriod.Middle / 60.0;
                                int    firstCoef    = 300;
                                arrivalComponent.AddUtilityTerm(300, Math.Log(arrivalPeriodAvailableMinutes));
                                //arrival shift variables
                                arrivalComponent.AddUtilityTerm(firstCoef + 2, partTimeWorkerFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 3, nonworkingAdultFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 4, universityStudentFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 5, retiredAdultFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 6, drivingAgeStudentFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 7, childAge5Through15Flag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 8, childUnder5Flag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 9, escortTourFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 10, shoppingTourFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 11, mealTourFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 12, socialTourFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 13, personalBusinessTourFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 14, recreationTourFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 15, medicalTourFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 16, income0To25KFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 17, income100KPlusFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 18, highPrioritySameFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 19, lowPrioritySameFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 20, highPriorityDifferentFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 21, lowPriorityDifferentFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 22, jointTourFlag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 23, partialHalfTour1Flag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 24, fullHalfTour1Flag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 25, partialHalfTour2Flag * hoursArrival);
                                arrivalComponent.AddUtilityTerm(firstCoef + 26, fullHalfTour2Flag * hoursArrival);
                            }

                            componentIndex = bigPeriodCount + departurePeriodIndex;
                            choiceProbabilityCalculator.CreateUtilityComponent(componentIndex);
                            ChoiceProbabilityCalculator.Component departureComponent = choiceProbabilityCalculator.GetUtilityComponent(componentIndex);


                            if (departurePeriodAvailableMinutes > 0)
                            {
                                departureComponent.AddUtilityTerm(300, Math.Log(departurePeriodAvailableMinutes));
                            }
                        }
                        // set period combination component
                        periodComb++;
                        componentIndex = 2 * bigPeriodCount + periodComb;
                        choiceProbabilityCalculator.CreateUtilityComponent(componentIndex);
                        ChoiceProbabilityCalculator.Component combinationComponent = choiceProbabilityCalculator.GetUtilityComponent(componentIndex);

                        if (arrivalPeriodAvailableMinutes > 0 && departurePeriodAvailableMinutes > 0)
                        {
                            double hoursDuration = (departurePeriod.Middle - arrivalPeriod.Middle) / 60.0;

                            int firstCoef = 700;
                            //combination constants
                            combinationComponent.AddUtilityTerm(firstCoef + periodComb, 1.0);
                            // duration shift variables
                            combinationComponent.AddUtilityTerm(firstCoef + 31, escortTourFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 32, shoppingTourFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 33, mealTourFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 34, socialTourFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 35, personalBusinessTourFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 36, recreationTourFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 37, medicalTourFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 38, highPrioritySameFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 39, lowPrioritySameFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 40, highPriorityDifferentFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 41, lowPriorityDifferentFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 42, partTimeWorkerFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 43, jointTourFlag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 44, partialHalfTour1Flag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 45, fullHalfTour1Flag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 46, partialHalfTour2Flag * hoursDuration);
                            combinationComponent.AddUtilityTerm(firstCoef + 47, fullHalfTour2Flag * hoursDuration);
                            // peak-to-peak variables
                            if (arrivalPeriod.Index == DayPeriod.AM_PEAK && departurePeriod.Index == DayPeriod.PM_PEAK)
                            {
                                combinationComponent.AddUtilityTerm(firstCoef + 48, fulltimeWorkerFlag);
                                combinationComponent.AddUtilityTerm(firstCoef + 49, income0To25KFlag);
                                combinationComponent.AddUtilityTerm(firstCoef + 50, income100KPlusFlag);
                            }
                        }
                    }
                }
            }

            for (int mode = Global.Settings.Modes.Walk; mode <= Global.Settings.Modes.SchoolBus; mode++)
            {
                componentIndex = 2 * bigPeriodCount + nPeriodCombs + mode - 1;
                choiceProbabilityCalculator.CreateUtilityComponent(componentIndex);
                ChoiceProbabilityCalculator.Component modeComponent = choiceProbabilityCalculator.GetUtilityComponent(componentIndex);

                if (mode == Global.Settings.Modes.SchoolBus)
                {
                    modeComponent.AddUtilityTerm(10, 1);
                    modeComponent.AddUtilityTerm(11, childUnder5Flag);
                    modeComponent.AddUtilityTerm(12, adultFlag);
                }
                else if (mode == Global.Settings.Modes.ParkAndRide)
                {
                    modeComponent.AddUtilityTerm(10, 1);
                    modeComponent.AddUtilityTerm(16, noCarsInHouseholdFlag);
                    modeComponent.AddUtilityTerm(17, carsLessThanWorkersFlag);
                    modeComponent.AddUtilityTerm(129, destinationParcel.MixedUse2Index1());
                    modeComponent.AddUtilityTerm(129, destinationParcel.TotalEmploymentDensity1() / 5000.0);
                    modeComponent.AddUtilityTerm(129, destinationParcel.NetIntersectionDensity1() / 50.0);
                    //modeComponent.AddUtilityTerm(123, Math.Log(destinationParcel.StopsTransitBuffer1 + 1));
                }
                else if (mode == Global.Settings.Modes.Transit)
                {
                    modeComponent.AddUtilityTerm(20, 1);
                    //        modeComponent.AddUtilityTerm(21, maleFlag);
                    modeComponent.AddUtilityTerm(22, ageUnder30Flag);
                    //    modeComponent.AddUtilityTerm(23, ageBetween51And98Flag);
                    modeComponent.AddUtilityTerm(24, income0To25KFlag);
                    //    modeComponent.AddUtilityTerm(25, income100KPlusFlag);
                    modeComponent.AddUtilityTerm(26, noCarsInHouseholdFlag);
                    modeComponent.AddUtilityTerm(27, carsLessThanDriversFlag);
                    modeComponent.AddUtilityTerm(129, destinationParcel.MixedUse2Index1());
                    modeComponent.AddUtilityTerm(129, destinationParcel.TotalEmploymentDensity1() / 5000.0);
                    modeComponent.AddUtilityTerm(129, destinationParcel.NetIntersectionDensity1() / 50.0);
                    //    modeComponent.AddUtilityTerm(124, originParcel.NetIntersectionDensity1()/50.0);
                    //    modeComponent.AddUtilityTerm(124, originParcel.HouseholdDensity1()/1000.0);
                    //    modeComponent.AddUtilityTerm(124, originParcel.MixedUse2Index1());
                    //modeComponent.AddUtilityTerm(123, Math.Log(destinationParcel.StopsTransitBuffer1 + 1));
                    //modeComponent.AddUtilityTerm(122, Math.Log(originParcel.StopsTransitBuffer1 + 1));
                }
                else if (mode == Global.Settings.Modes.Hov3)
                {
                    modeComponent.AddUtilityTerm(30, 1);
                    modeComponent.AddUtilityTerm(31, childrenUnder5);
                    modeComponent.AddUtilityTerm(32, childrenAge5Through15);
                    modeComponent.AddUtilityTerm(34, nonworkingAdults + retiredAdults);
                    modeComponent.AddUtilityTerm(38, onePersonHouseholdFlag);
                    modeComponent.AddUtilityTerm(39, twoPersonHouseholdFlag);
                    modeComponent.AddUtilityTerm(36, noCarsInHouseholdFlag);
                    modeComponent.AddUtilityTerm(37, carsLessThanDriversFlag);
                }
                else if (mode == Global.Settings.Modes.Hov2)
                {
                    modeComponent.AddUtilityTerm(31, childrenUnder5);
                    modeComponent.AddUtilityTerm(32, childrenAge5Through15);
                    modeComponent.AddUtilityTerm(34, nonworkingAdults + retiredAdults);
                    modeComponent.AddUtilityTerm(36, noCarsInHouseholdFlag);
                    modeComponent.AddUtilityTerm(37, carsLessThanDriversFlag);
                    modeComponent.AddUtilityTerm(40, 1);
                    modeComponent.AddUtilityTerm(41, onePersonHouseholdFlag);
                }
                else if (mode == Global.Settings.Modes.Sov)
                {
                    //    modeComponent.AddUtilityTerm(50, 1);
                    //    modeComponent.AddUtilityTerm(54, income0To25KFlag);
                    modeComponent.AddUtilityTerm(55, income100KPlusFlag);
                    modeComponent.AddUtilityTerm(57, carsLessThanWorkersFlag);
                }
                else if (mode == Global.Settings.Modes.Bike)
                {
                    modeComponent.AddUtilityTerm(60, 1);
                    modeComponent.AddUtilityTerm(61, maleFlag);
                    modeComponent.AddUtilityTerm(62, ageUnder30Flag);
                    modeComponent.AddUtilityTerm(63, ageBetween51And98Flag);
                    //        modeComponent.AddUtilityTerm(64, income0To25KFlag);
                    //      modeComponent.AddUtilityTerm(65, income100KPlusFlag);
                    modeComponent.AddUtilityTerm(66, noCarsInHouseholdFlag);
                    modeComponent.AddUtilityTerm(67, carsLessThanDriversFlag);
                    modeComponent.AddUtilityTerm(169, destinationParcel.MixedUse4Index2());
                    modeComponent.AddUtilityTerm(169, destinationParcel.TotalEmploymentDensity2() / 20000.0);
                    modeComponent.AddUtilityTerm(169, destinationParcel.NetIntersectionDensity2() / 200.0);
                    modeComponent.AddUtilityTerm(164, originParcel.NetIntersectionDensity2() / 200.0);
                    modeComponent.AddUtilityTerm(164, originParcel.HouseholdDensity2() / 4000.0);
                    modeComponent.AddUtilityTerm(164, originParcel.MixedUse4Index2());
                }
                else if (mode == Global.Settings.Modes.Walk)
                {
                    modeComponent.AddUtilityTerm(70, 1.0);
                    modeComponent.AddUtilityTerm(71, maleFlag);
                    modeComponent.AddUtilityTerm(72, ageUnder30Flag);
                    //        modeComponent.AddUtilityTerm(73, ageBetween51And98Flag);
                    //        modeComponent.AddUtilityTerm(74, income0To25KFlag);
                    modeComponent.AddUtilityTerm(75, income100KPlusFlag);
                    //        modeComponent.AddUtilityTerm(76, noCarsInHouseholdFlag);
                    modeComponent.AddUtilityTerm(77, carsLessThanDriversFlag);
                    modeComponent.AddUtilityTerm(179, destinationParcel.MixedUse4Index1());
                    modeComponent.AddUtilityTerm(179, destinationParcel.TotalEmploymentDensity1() / 5000.0);
                    modeComponent.AddUtilityTerm(179, destinationParcel.NetIntersectionDensity1() / 50.0);
                    modeComponent.AddUtilityTerm(179, originParcel.NetIntersectionDensity1() / 50.0);
                    modeComponent.AddUtilityTerm(179, originParcel.HouseholdDensity1() / 1000.0);
                    modeComponent.AddUtilityTerm(179, originParcel.MixedUse4Index1());
                }

                if (mode == Global.Settings.Modes.Walk || mode == Global.Settings.Modes.Bike || mode == Global.Settings.Modes.Hov2 ||
                    mode == Global.Settings.Modes.Hov3 || mode == Global.Settings.Modes.Transit)
                {
                    int firstCoef = 200 + 10 * mode;
                    //modeComponent.AddUtilityTerm(firstCoef + 0, escortTourFlag);
                    //modeComponent.AddUtilityTerm(firstCoef + 1, shoppingTourFlag);
                    //modeComponent.AddUtilityTerm(firstCoef + 2, mealTourFlag);
                    //modeComponent.AddUtilityTerm(firstCoef + 3, socialTourFlag);
                    //modeComponent.AddUtilityTerm(firstCoef + 4, personalBusinessTourFlag);
                    //modeComponent.AddUtilityTerm(firstCoef + 5, recreationTourFlag);
                    //    modeComponent.AddUtilityTerm(firstCoef + 6, medicalTourFlag);
                    //modeComponent.AddUtilityTerm(firstCoef + 7, jointTourFlag);
                    modeComponent.AddUtilityTerm(firstCoef + 8, Math.Min(partialHalfTour1Flag + partialHalfTour2Flag, 1.0));
                    modeComponent.AddUtilityTerm(firstCoef + 9, Math.Min(fullHalfTour1Flag + fullHalfTour2Flag, 1.0));

                    modeComponent.AddUtilityTerm(290 + mode, mode == parentTourMode ? 1 : 0);
                }
                modeComponent.AddUtilityTerm(298, mode >= Global.Settings.Modes.Sov && mode <= Global.Settings.Modes.Hov3 && parentTourMode == Global.Settings.Modes.Sov ? 1 : 0);
                modeComponent.AddUtilityTerm(299, mode >= Global.Settings.Modes.Sov && mode <= Global.Settings.Modes.Hov3 && parentTourMode >= Global.Settings.Modes.Hov2 && parentTourMode <= Global.Settings.Modes.Hov3 ? 1 : 0);
            }



            //loop on all alternatives, using modeTimes objects
            {
                foreach (HTourModeTime modeTimes in HTourModeTime.ModeTimes[ParallelUtility.threadLocalAssignedIndex.Value])
                {
                    MinuteSpan arrivalPeriod = modeTimes.ArrivalPeriod;
                    int        arrivalPeriodAvailableMinutes = timeWindow.TotalAvailableMinutes(arrivalPeriod.Start, arrivalPeriod.End);

                    MinuteSpan departurePeriod = modeTimes.DeparturePeriod;
                    int        departurePeriodAvailableMinutes = timeWindow.TotalAvailableMinutes(departurePeriod.Start, departurePeriod.End);
                    periodComb = modeTimes.PeriodCombinationIndex;

                    int mode = modeTimes.Mode;

                    int altIndex = modeTimes.Index;

                    //set availabillity based on time window variables and any constrained choices
                    bool available = (modeTimes.LongestFeasibleWindow != null) && (mode > 0) &&
                                     (mode != Global.Settings.Modes.Sov || (tour.Person.IsDrivingAge && tour.Household.VehiclesAvailable > 0)) &&
                                     (constrainedMode <= 0 || constrainedMode == mode) &&
                                     (constrainedArrivalTime <= 0 || (constrainedArrivalTime >= arrivalPeriod.Start && constrainedArrivalTime <= arrivalPeriod.End)) &&
                                     (constrainedDepartureTime <= 0 || (constrainedDepartureTime >= departurePeriod.Start && constrainedDepartureTime <= departurePeriod.End));


                    ChoiceProbabilityCalculator.Alternative alternative = choiceProbabilityCalculator.GetAlternative(altIndex, available,
                                                                                                                     choice != null && choice.Index == altIndex);

                    alternative.Choice = modeTimes; // JLB added 20130420

                    //alternative.AddNestedAlternative(HTourModeTime.TOTAL_TOUR_MODE_TIMES + periodComb + 1, periodComb, THETA_PARAMETER);

                    if (Global.Configuration.IsInEstimationMode && choice != null && altIndex == choice.Index)
                    {
                        Global.PrintFile.WriteLine("Aper Dper Mode {0} {1} {2} Travel Times {3} {4} Window {5} {6}",
                                                   arrivalPeriod.Index, departurePeriod.Index, mode,
                                                   modeTimes.ModeAvailableToDestination ? modeTimes.TravelTimeToDestination : -1,
                                                   modeTimes.ModeAvailableFromDestination ? modeTimes.TravelTimeFromDestination : -1,
                                                   modeTimes.LongestFeasibleWindow != null ? modeTimes.LongestFeasibleWindow.Start : -1,
                                                   modeTimes.LongestFeasibleWindow != null ? modeTimes.LongestFeasibleWindow.End : -1);
                    }

                    /*                if (altIndex == 0)
                     *                  {
                     *                      alternative.AddUtilityTerm(991, tour.Household.Id);
                     *                      alternative.AddUtilityTerm(992, tour.Person.Id);
                     *                      alternative.AddUtilityTerm(993, tour.PersonDay.Day);
                     *                      alternative.AddUtilityTerm(994, tour.Sequence);
                     *                      alternative.AddUtilityTerm(995, constrainedMode);
                     *                      alternative.AddUtilityTerm(996, constrainedArrivalTime);
                     *                      alternative.AddUtilityTerm(997, constrainedDepartureTime);
                     *                      alternative.AddUtilityTerm(998, tour.DestinationPurpose);
                     *                      alternative.AddUtilityTerm(999, (tour.ParentTour == null) ? 0 : 1);
                     *                  }
                     */
                    //if in application mode and combination is not available, can skip the rest
                    if (!Global.Configuration.IsInEstimationMode && !alternative.Available)
                    {
                        continue;
                    }
                    if (useTimeComponents)
                    {
                        // arrival period utility component
                        alternative.AddUtilityComponent(choiceProbabilityCalculator.GetUtilityComponent(arrivalPeriod.Index));

                        // departure period utility component
                        alternative.AddUtilityComponent(
                            choiceProbabilityCalculator.GetUtilityComponent(bigPeriodCount + departurePeriod.Index));

                        // period combination utility component
                        alternative.AddUtilityComponent(choiceProbabilityCalculator.GetUtilityComponent(2 * bigPeriodCount + periodComb));
                    }
                    // mode utility component
                    alternative.AddUtilityComponent(
                        choiceProbabilityCalculator.GetUtilityComponent(2 * bigPeriodCount + nPeriodCombs + mode - 1));

                    //even in estimation mode, do not need the rest of the code if not available
                    if (!alternative.Available)
                    {
                        continue;
                    }

                    // set parking cost for period combination
                    double parkingDuration = (departurePeriod == arrivalPeriod
                                               ? (arrivalPeriod.End - arrivalPeriod.Start) / 2.0
                                               : departurePeriod.Middle - arrivalPeriod.Middle) / 60.0;

                    // parking at work is free if no paid parking at work and tour goes to usual workplace
                    double destinationParkingCost = (!Global.Configuration.IsInEstimationMode &&
                                                     Global.Configuration.ShouldRunPayToParkAtWorkplaceModel &&
                                                     tour.Person.UsualWorkParcel != null &&
                                                     destinationParcel == tour.Person.UsualWorkParcel &&
                                                     person.PaidParkingAtWorkplace == 0)
                                                     ? 0.0
                                                     : destinationParcel.ParkingCostBuffer1(parkingDuration);
                    double parkingCostFraction = (mode == Global.Settings.Modes.Sov)
                                                  ? 1.0
                                                  : (mode == Global.Settings.Modes.Hov2)
                                                        ? 1.0 / Global.Configuration.Coefficients_HOV2CostDivisor_Work
                                                        : (mode == Global.Settings.Modes.Hov3)
                                                              ? 1.0 / Global.Configuration.Coefficients_HOV3CostDivisor_Work
                                                              : 0.0;


                    double minimumTimeNeeded = modeTimes.TravelTimeToDestination + modeTimes.TravelTimeFromDestination +
                                               Global.Settings.Times.MinimumActivityDuration;

                    alternative.AddUtilityTerm(1, modeTimes.GeneralizedTimeToDestination + modeTimes.GeneralizedTimeFromDestination);
                    //alternative.AddUtilityTerm(2, destinationParkingCost*parkingCostFraction);
                    //alternative.AddUtilityTerm(3,
                    //                           Math.Log(Math.Min(1140, modeTimes.LongestFeasibleWindow.End - modeTimes.LongestFeasibleWindow.Start -
                    //                                                     minimumTimeNeeded + 1.0 )));
                    // JLB 20140204 replaced coeff 3 with a different time window formulation:  time pressure
                    //    instead of having positive utility for increasing time window, have negative utility for decreasing time window
                    alternative.AddUtilityTerm(3,
                                               Math.Log(Math.Max(Constants.EPSILON, 1 -
                                                                 Math.Pow(minimumTimeNeeded / (Math.Min(1140, modeTimes.LongestFeasibleWindow.End - modeTimes.LongestFeasibleWindow.Start)), 0.3)
                                                                 )));

                    //alternative.AddUtilityTerm(4, Math.Log((totalMinutesAvailableInDay + 1.0)/(minimumTimeNeeded + 1.0)));
                    //alternative.AddUtilityTerm(4,
                    //                    Math.Log(Math.Max(Constants.EPSILON, 1 - minimumTimeNeeded/(Math.Min(1140, totalMinutesAvailableInDay)))));

                    //alternative.AddUtilityTerm(5,
                    //                           (maleFlag == 0 && mode == Global.Settings.Modes.Walk &&
                    //                            arrivalPeriod.Index >= DayPeriod.EVENING)
                    //                                   ? 1
                    //                                   : 0);
                    //    alternative.AddUtilityTerm(5,
                    //                               (maleFlag == 0 && mode == Global.Settings.Modes.Walk &&
                    //                                departurePeriod.Index >= DayPeriod.EVENING)
                    //                                   ? 1
                    //                                   : 0);
                }
            }
        }