MSStageDriving.cpp

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/****************************************************************************/
// Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
// Copyright (C) 2001-2025 German Aerospace Center (DLR) and others.
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0/
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License 2.0 are satisfied: GNU General Public License, version 2
// or later which is available at
// https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
/****************************************************************************/
// A stage performing the travelling by a transport system (cars, public transport)
/****************************************************************************/
#include <config.h>
 
#include <utils/common/StringTokenizer.h>
#include <utils/geom/GeomHelper.h>
#include <utils/vehicle/SUMOVehicleParameter.h>
#include <utils/router/PedestrianRouter.h>
#include <utils/router/IntermodalRouter.h>
#include <microsim/MSEdge.h>
#include <microsim/MSEventControl.h>
#include <microsim/MSLane.h>
#include <microsim/MSNet.h>
#include <microsim/MSStop.h>
#include <microsim/MSInsertionControl.h>
#include <microsim/MSVehicleControl.h>
#include <microsim/MSStoppingPlace.h>
#include <microsim/MSTrainHelper.h>
#include <microsim/MSVehicleType.h>
#include <microsim/devices/MSTransportableDevice.h>
#include <microsim/devices/MSDevice_Taxi.h>
#include <microsim/devices/MSDevice_Transportable.h>
#include <microsim/devices/MSDevice_Tripinfo.h>
#include <microsim/devices/MSDispatch.h>
#include <microsim/transportables/MSTransportableControl.h>
#include <microsim/transportables/MSStageDriving.h>
#include <microsim/transportables/MSPModel.h>
#include <microsim/transportables/MSPerson.h>
 
 
// ===========================================================================
// method definitions
// ===========================================================================
MSStageDriving::MSStageDriving(const MSEdge* origin, const MSEdge* destination,
                               MSStoppingPlace* toStop, const double arrivalPos, const double arrivalPosLat,
                               const std::vector<std::string>& lines, const std::string& group,
                               const std::string& intendedVeh, SUMOTime intendedDepart) :
    MSStage(MSStageType::DRIVING, destination, toStop, arrivalPos, arrivalPosLat, group),
    myOrigin(origin),
    myLines(lines.begin(), lines.end()),
    myVehicle(nullptr),
    myVehicleID("NULL"),
    myVehicleVClass(SVC_IGNORING),
    myVehicleDistance(-1.),
    myTimeLoss(-1),
    myWaitingPos(-1),
    myWaitingSince(-1),
    myWaitingEdge(nullptr),
    myStopWaitPos(Position::INVALID),
    myOriginStop(nullptr),
    myIntendedVehicleID(intendedVeh),
    myIntendedDepart(intendedDepart),
    myReservationCommand(nullptr) {
}
 
 
MSStage*
MSStageDriving::clone() const {
    MSStage* const clon = new MSStageDriving(myOrigin, myDestination, myDestinationStop, myArrivalPos, myArrivalPosLat,
            std::vector<std::string>(myLines.begin(), myLines.end()),
            myGroup, myIntendedVehicleID, myIntendedDepart);
    clon->setParameters(*this);
    return clon;
}
 
 
MSStageDriving::~MSStageDriving() {}
 
 
void
MSStageDriving::init(MSTransportable* transportable) {
    if (hasParameter("earliestPickupTime")) {
        SUMOTime reservationTime = MSNet::getInstance()->getCurrentTimeStep();
        if (hasParameter("reservationTime")) {
            reservationTime = string2time(getParameter("reservationTime"));
        }
        SUMOTime earliestPickupTime = string2time(getParameter("earliestPickupTime"));
        if (transportable->getNextStage(1) == this) {
            // if the ride is the first stage use the departPos (there is a unvisible stop before)
            myWaitingPos = transportable->getParameter().departPos;
        } else {
            // else use the middle of the edge, as also used as default for walk's arrivalPos
            myWaitingPos = myOrigin->getLength() / 2;
        }
        myReservationCommand = new BookReservation(transportable, earliestPickupTime, this);
        MSNet::getInstance()->getBeginOfTimestepEvents()->addEvent(myReservationCommand, reservationTime);
    }
}
 
 
const MSEdge*
MSStageDriving::getEdge() const {
    if (myVehicle != nullptr) {
        if (myVehicle->getLane() != nullptr) {
            return &myVehicle->getLane()->getEdge();
        }
        return myVehicle->getEdge();
    } else if (myArrived >= 0) {
        return myDestination;
    } else {
        return myWaitingEdge;
    }
}
 
 
const MSEdge*
MSStageDriving::getFromEdge() const {
    return myWaitingEdge;
}
 
 
double
MSStageDriving::getEdgePos(SUMOTime /* now */) const {
    if (isWaiting4Vehicle()) {
        return myWaitingPos;
    } else if (myArrived >= 0) {
        return myArrivalPos;
    } else {
        // vehicle may already have passed the lane (check whether this is correct)
        return MIN2(myVehicle->getPositionOnLane(), getEdge()->getLength());
    }
}
 
int
MSStageDriving::getDirection() const {
    if (isWaiting4Vehicle()) {
        return MSPModel::UNDEFINED_DIRECTION;
    } else if (myArrived >= 0) {
        return MSPModel::UNDEFINED_DIRECTION;
    } else {
        return MSPModel::FORWARD;
    }
}
 
const MSLane*
MSStageDriving::getLane() const {
    return myVehicle != nullptr ? myVehicle->getLane() : nullptr;
}
 
 
Position
MSStageDriving::getPosition(SUMOTime /* now */) const {
    if (isWaiting4Vehicle()) {
        if (myStopWaitPos != Position::INVALID) {
            return myStopWaitPos;
        }
        return getEdgePosition(myWaitingEdge, myWaitingPos,
                               ROADSIDE_OFFSET * (MSGlobals::gLefthand ? -1 : 1));
    } else if (myArrived >= 0) {
        return getEdgePosition(myDestination, myArrivalPos,
                               ROADSIDE_OFFSET * (MSGlobals::gLefthand ? -1 : 1));
    } else {
        return myVehicle->getPosition();
    }
}
 
 
double
MSStageDriving::getAngle(SUMOTime /* now */) const {
    if (isWaiting4Vehicle()) {
        const double offset = myOriginStop == nullptr ? M_PI / 2 : myOriginStop->getAngle();
        return getEdgeAngle(myWaitingEdge, myWaitingPos) + offset * (MSGlobals::gLefthand ? -1 : 1);
    } else if (myArrived >= 0) {
        return getEdgeAngle(myDestination, myArrivalPos) + M_PI / 2. * (MSGlobals::gLefthand ? -1 : 1);
    } else {
        MSVehicle* veh = dynamic_cast<MSVehicle*>(myVehicle);
        if (veh != nullptr) {
            return veh->getAngle();
        } else {
            return 0;
        }
    }
}
 
 
double
MSStageDriving::getDistance() const {
    if (myVehicle != nullptr) {
        // distance was previously set to driven distance upon embarking
        return myVehicle->getOdometer() - myVehicleDistance;
    }
    return myVehicleDistance;
}
 
 
std::string
MSStageDriving::getStageDescription(const bool isPerson) const {
    return isWaiting4Vehicle() ? "waiting for " + joinToString(myLines, ",") : (isPerson ? "driving" : "transport");
}
 
 
std::string
MSStageDriving::getStageSummary(const bool isPerson) const {
    const std::string dest = (getDestinationStop() == nullptr ?
                              " edge '" + getDestination()->getID() + "'" :
                              " stop '" + getDestinationStop()->getID() + "'" + (
                                  getDestinationStop()->getMyName() != "" ? " (" + getDestinationStop()->getMyName() + ")" : ""));
    const std::string intended = myIntendedVehicleID != "" ?
                                 " (vehicle " + myIntendedVehicleID + " at time=" + time2string(myIntendedDepart) + ")" :
                                 "";
    const std::string modeName = isPerson ? "driving" : "transported";
    return isWaiting4Vehicle() ?
           "waiting for " + joinToString(myLines, ",") + intended + " then " + modeName + " to " + dest :
           modeName + " to " + dest;
}
 
 
void
MSStageDriving::proceed(MSNet* net, MSTransportable* transportable, SUMOTime now, MSStage* previous) {
    myOriginStop = (previous->getStageType() == MSStageType::TRIP
                    ? previous->getOriginStop()
                    : previous->getDestinationStop());
    myWaitingSince = now;
    const bool isPerson = transportable->isPerson();
    if (transportable->getParameter().departProcedure == DepartDefinition::TRIGGERED
            && transportable->getCurrentStageIndex() == 1) {
        // we are the first real stage (stage 0 is WAITING_FOR_DEPART)
        const std::string vehID = *myLines.begin();
        SUMOVehicle* startVeh = net->getVehicleControl().getVehicle(vehID);
        if (startVeh == nullptr && net->hasFlow(vehID)) {
            startVeh = net->getInsertionControl().getLastFlowVehicle(vehID);
        }
        if (startVeh == nullptr) {
            throw ProcessError("Vehicle '" + vehID + "' not found for triggered departure of " +
                               (isPerson ? "person" : "container") + " '" + transportable->getID() + "'.");
        }
        if (transportable->isPerson()) {
            const int pCap = startVeh->getVehicleType().getParameter().personCapacity;
            if (startVeh->getPersonNumber() >= pCap) {
                WRITE_WARNING(TLF("Vehicle '%' exceeds personCapacity % when placing triggered person '%', time=%",
                                  startVeh->getID(), pCap, transportable->getID(), time2string(SIMSTEP)));
            }
        } else {
            const int cCap = startVeh->getVehicleType().getParameter().containerCapacity;
            if (startVeh->getContainerNumber() >= cCap) {
                WRITE_WARNING(TLF("Vehicle '%' exceeds containerCapacity % when placing triggered container '%', time=%",
                                  startVeh->getID(), cCap, transportable->getID(), time2string(SIMSTEP)));
            }
        }
        myDeparted = now;
        setVehicle(startVeh);
        if (myOriginStop != nullptr) {
            myOriginStop->removeTransportable(transportable);
        }
        myWaitingEdge = previous->getEdge();
        myStopWaitPos = Position::INVALID;
        myWaitingPos = previous->getEdgePos(now);
        myVehicle->addTransportable(transportable);
        return;
    }
    if (myOriginStop != nullptr) {
        // the arrival stop may have an access point
        myWaitingEdge = &myOriginStop->getLane().getEdge();
        myStopWaitPos = myOriginStop->getWaitPosition(transportable);
        myWaitingPos = myOriginStop->getWaitingPositionOnLane(transportable);
    } else {
        myWaitingEdge = previous->getEdge();
        myStopWaitPos = Position::INVALID;
        myWaitingPos = previous->getEdgePos(now);
    }
    if (myOrigin != nullptr && myOrigin != myWaitingEdge
            && (myOriginStop == nullptr || myOriginStop->getAccessPos(myOrigin) < 0)) {
        // transfer at junction (rather than access)
        myWaitingEdge = myOrigin;
        myWaitingPos = 0;
    }
    SUMOVehicle* const availableVehicle = myWaitingEdge->getWaitingVehicle(transportable, myWaitingPos);
    const bool triggered = availableVehicle != nullptr &&
                           ((isPerson && availableVehicle->getParameter().departProcedure == DepartDefinition::TRIGGERED) ||
                            (!isPerson && availableVehicle->getParameter().departProcedure == DepartDefinition::CONTAINER_TRIGGERED));
    if (triggered && !availableVehicle->hasDeparted()) {
        setVehicle(availableVehicle);
        if (myOriginStop != nullptr) {
            myOriginStop->removeTransportable(transportable);
        }
        myVehicle->addTransportable(transportable);
        net->getInsertionControl().add(myVehicle);
        net->getVehicleControl().handleTriggeredDepart(myVehicle, false);
    } else {
        registerWaiting(transportable, now);
    }
}
 
 
void
MSStageDriving::registerWaiting(MSTransportable* transportable, SUMOTime now) {
    // check if the ride can be conducted and reserve it
    if (MSDevice_Taxi::isReservation(getLines())) {
        const MSEdge* to = getDestination();
        double toPos = getArrivalPos();
        if ((to->getPermissions() & SVC_TAXI) == 0 && getDestinationStop() != nullptr) {
            // try to find usable access edge
            for (const auto& access : getDestinationStop()->getAllAccessPos()) {
                const MSEdge* accessEdge = &access.lane->getEdge();
                if ((accessEdge->getPermissions() & SVC_TAXI) != 0) {
                    to = accessEdge;
                    toPos = access.endPos;
                    break;
                }
            }
        }
        if ((myWaitingEdge->getPermissions() & SVC_TAXI) == 0 && myOriginStop != nullptr) {
            // try to find usable access edge
            for (const auto& access : myOriginStop->getAllAccessPos()) {
                const MSEdge* accessEdge = &access.lane->getEdge();
                if ((accessEdge->getPermissions() & SVC_TAXI) != 0) {
                    myWaitingEdge = accessEdge;
                    myStopWaitPos = Position::INVALID;
                    myWaitingPos = access.endPos;
                    break;
                }
            }
        }
        // Create reservation only if not already created by previous reservationTime
        if (myReservationCommand == nullptr) {
            MSDevice_Taxi::addReservation(transportable, getLines(), now, now, -1, myWaitingEdge, myWaitingPos, myOriginStop, to, toPos, myDestinationStop, myGroup);
        } else {
            // update "fromPos" with current (new) value of myWaitingPos
            MSDevice_Taxi::updateReservationFromPos(transportable, getLines(), myWaitingEdge, myReservationCommand->myWaitingPos, to, toPos, myGroup, myWaitingPos);
        }
    }
    if (transportable->isPerson()) {
        MSNet::getInstance()->getPersonControl().addWaiting(myWaitingEdge, transportable);
    } else {
        MSNet::getInstance()->getContainerControl().addWaiting(myWaitingEdge, transportable);
    }
    myWaitingEdge->addTransportable(transportable);
}
 
SUMOTime
MSStageDriving::getDuration() const {
    return myArrived >= 0 ? myArrived - myWaitingSince : SUMOTime_MAX;
}
 
 
SUMOTime
MSStageDriving::getTravelTime() const {
    return myArrived >= 0 ? myArrived - myDeparted : SUMOTime_MAX;
}
 
 
SUMOTime
MSStageDriving::getWaitingTime() const {
    const SUMOTime departed = myDeparted >= 0 ? myDeparted : SIMSTEP;
    return myWaitingSince >= 0 ? departed - myWaitingSince : SUMOTime_MAX;
}
 
 
SUMOTime
MSStageDriving::getTimeLoss(const MSTransportable* /*transportable*/) const {
    return myArrived >= 0 ? myTimeLoss : SUMOTime_MAX;
}
 
void
MSStageDriving::tripInfoOutput(OutputDevice& os, const MSTransportable* const transportable) const {
    const SUMOTime now = MSNet::getInstance()->getCurrentTimeStep();
    const SUMOTime waitingTime = getWaitingTime();
    const SUMOTime duration = myArrived - myDeparted;
    MSDevice_Tripinfo::addRideTransportData(transportable->isPerson(), myVehicleDistance, duration, myVehicleVClass, myVehicleLine, waitingTime);
    os.openTag(transportable->isPerson() ? "ride" : "transport");
    os.writeAttr("waitingTime", waitingTime != SUMOTime_MAX ? time2string(waitingTime) : "-1");
    os.writeAttr("vehicle", myVehicleID);
    os.writeAttr("depart", myDeparted >= 0 ? time2string(myDeparted) : "-1");
    os.writeAttr("arrival", myArrived >= 0 ? time2string(myArrived) : "-1");
    os.writeAttr("arrivalPos", myArrived >= 0 ? toString(getArrivalPos()) : "-1");
    os.writeAttr("duration", myArrived >= 0 ? time2string(duration) :
                 (myDeparted >= 0 ? time2string(now - myDeparted) : "-1"));
    os.writeAttr("routeLength", myArrived >= 0 || myVehicle != nullptr ? toString(getDistance()) : "-1");
    os.writeAttr("timeLoss", myArrived >= 0 ? time2string(getTimeLoss(transportable)) : "-1");
    os.closeTag();
}
 
 
void
MSStageDriving::routeOutput(const bool isPerson, OutputDevice& os, const bool withRouteLength, const MSStage* const previous) const {
    os.openTag(isPerson ? SUMO_TAG_RIDE : SUMO_TAG_TRANSPORT);
    if (getFromEdge() != nullptr) {
        os.writeAttr(SUMO_ATTR_FROM, getFromEdge()->getID());
    } else if (previous != nullptr && previous->getStageType() == MSStageType::WAITING_FOR_DEPART) {
        os.writeAttr(SUMO_ATTR_FROM, previous->getEdge()->getID());
    }
    os.writeAttr(SUMO_ATTR_TO, getDestination()->getID());
    std::string comment = "";
    if (myDestinationStop != nullptr) {
        os.writeAttr(toString(myDestinationStop->getElement()), myDestinationStop->getID());
        if (myDestinationStop->getMyName() != "") {
            comment = " <!-- " + StringUtils::escapeXML(myDestinationStop->getMyName(), true) + " -->";
        }
    } else if (!unspecifiedArrivalPos()) {
        os.writeAttr(SUMO_ATTR_ARRIVALPOS, myArrivalPos);
    }
    if (myLines.size() > 1 || *myLines.begin() != LINE_ANY) {
        // no need to write the default
        os.writeAttr(SUMO_ATTR_LINES, myLines);
    }
    if (myIntendedVehicleID != "") {
        os.writeAttr(SUMO_ATTR_INTENDED, myIntendedVehicleID);
    }
    if (myIntendedDepart >= 0) {
        os.writeAttr(SUMO_ATTR_DEPART, time2string(myIntendedDepart));
    }
    if (withRouteLength) {
        os.writeAttr("routeLength", myVehicleDistance);
    }
    if (OptionsCont::getOptions().getBool("vehroute-output.exit-times")) {
        os.writeAttr("vehicle", myVehicleID);
        os.writeAttr(SUMO_ATTR_STARTED, myDeparted >= 0 ? time2string(myDeparted) : "-1");
        os.writeAttr(SUMO_ATTR_ENDED, myArrived >= 0 ? time2string(myArrived) : "-1");
    }
    if (OptionsCont::getOptions().getBool("vehroute-output.cost")) {
        os.writeAttr(SUMO_ATTR_COST, getCosts());
    }
    os.closeTag(comment);
}
 
 
bool
MSStageDriving::isWaitingFor(const SUMOVehicle* vehicle) const {
    assert(myLines.size() > 0);
    return (myLines.count(vehicle->getID()) > 0
            || ((myLines.count(vehicle->getParameter().line) > 0
                 || myLines.count(LINE_ANY) > 0) &&
                // even if the line matches we still have to check for stops (#14526)
                (myDestinationStop == nullptr
                 ? vehicle->stopsAtEdge(myDestination)
                 : vehicle->stopsAt(myDestinationStop)))
            || MSDevice_Taxi::compatibleLine(vehicle->getParameter().line, *myLines.begin()));
}
 
 
bool
MSStageDriving::isWaiting4Vehicle() const {
    return myVehicle == nullptr && myArrived < 0;
}
 
 
SUMOTime
MSStageDriving::getWaitingTime(SUMOTime now) const {
    return isWaiting4Vehicle() ? now - myWaitingSince : 0;
}
 
 
double
MSStageDriving::getSpeed() const {
    return myVehicle == nullptr ? 0 : myVehicle->getSpeed();
}
 
 
ConstMSEdgeVector
MSStageDriving::getEdges() const {
    ConstMSEdgeVector result;
    result.push_back(getFromEdge());
    result.push_back(getDestination());
    return result;
}
 
 
double
MSStageDriving::getArrivalPos() const {
    return unspecifiedArrivalPos() ? getDestination()->getLength() : myArrivalPos;
}
 
 
const std::string
MSStageDriving::setArrived(MSNet* net, MSTransportable* transportable, SUMOTime now, const bool vehicleArrived) {
    MSStage::setArrived(net, transportable, now, vehicleArrived);
    if (myVehicle != nullptr) {
        // distance was previously set to driven distance upon embarking
        myVehicleDistance = myVehicle->getOdometer() - myVehicleDistance;
        myTimeLoss = myVehicle->getTimeLoss() - myTimeLoss;
        if (vehicleArrived) {
            myArrivalPos = myVehicle->getArrivalPos();
        } else {
            myArrivalPos = myVehicle->getPositionOnLane();
        }
        const MSStoppingPlace* const stop = getDestinationStop();
        if (stop != nullptr) {
            MSStoppingPlace::AccessExit exit = MSStoppingPlace::AccessExit::PLATFORM;
            for (const auto& access : stop->getAllAccessPos()) {
                if (access.exit != exit) {
                    exit = access.exit;
                    break;
                }
            }
            if (exit != MSStoppingPlace::AccessExit::PLATFORM) {
                MSVehicle* train = dynamic_cast<MSVehicle*>(myVehicle);
                if (train != nullptr) {
                    MSTrainHelper trainHelper = MSTrainHelper(train);
                    const MSLane* const lane = myVehicle->getLane();
                    if (OptionsCont::getOptions().getString("pedestrian.model") != "jupedsim") {
                        trainHelper.computeDoorPositions();
                        const std::vector<MSTrainHelper::Carriage*>& carriages = trainHelper.getCarriages();
                        const int randomCarriageIx = RandHelper::rand(trainHelper.getNumCarriages() - trainHelper.getFirstPassengerCarriage()) + trainHelper.getFirstPassengerCarriage();
                        const MSTrainHelper::Carriage* randomCarriage = carriages[randomCarriageIx];
                        const int randomDoorIx = RandHelper::rand(trainHelper.getCarriageDoors());
                        Position randomDoor = randomCarriage->doorPositions[randomDoorIx];
                        // Jitter the position before projection because of possible train curvature.
                        Position direction = randomCarriage->front - randomCarriage->back;
                        direction.norm2D();
                        const double doorWidth = train->getVehicleType().getParameter().carriageDoorWidth;
                        randomDoor.add(direction * RandHelper::rand(-0.5 * doorWidth, 0.5 * doorWidth));
                        // Project onto the lane.
                        myArrivalPos = lane->getShape().nearest_offset_to_point2D(randomDoor);
                        myArrivalPos = lane->interpolateGeometryPosToLanePos(myArrivalPos);
                        myArrivalPos = MIN2(MAX2(0., myArrivalPos), myVehicle->getEdge()->getLength());
                    } else {
                        std::vector<Position>& unboardingPositions = static_cast<MSDevice_Transportable*>(train->getDevice(typeid(MSDevice_Transportable)))->getUnboardingPositions();
                        if (unboardingPositions.empty()) {
                            const MSVehicleType* defaultPedestrianType = MSNet::getInstance()->getVehicleControl().getVType(DEFAULT_PEDTYPE_ID, nullptr, true);
                            const double defaultPassengerRadius = MAX2(defaultPedestrianType->getLength(), defaultPedestrianType->getWidth()) / 2.;
                            trainHelper.computeUnboardingPositions(defaultPassengerRadius, unboardingPositions);
                        }
                        // Random shuffling of the positions has already been done in the train helper.
                        const Position availableUnboardingPosition = unboardingPositions.back();
                        unboardingPositions.pop_back();
                        const Position arrivalPos = lane->getShape().transformToVectorCoordinates(availableUnboardingPosition);
                        myArrivalPos = arrivalPos.x();
                        myArrivalPosLat = arrivalPos.y();
                    }
                }
            }
        }
    } else {
        myVehicleDistance = -1.;
        myTimeLoss = -1;
    }
    myVehicle = nullptr; // avoid dangling pointer after vehicle arrival
    return "";
}
 
 
void
MSStageDriving::setVehicle(SUMOVehicle* v) {
    myVehicle = v;
    if (myVehicle != nullptr) {
        myVehicleID = v->getID();
        myVehicleLine = v->getParameter().line;
        myVehicleType = v->getVehicleType().getID();
        myVehicleVClass = v->getVClass();
        if (myVehicle->hasDeparted()) {
            myVehicleDistance = myVehicle->getOdometer();
            myTimeLoss = myVehicle->getTimeLoss();
        } else {
            // it probably got triggered by the person
            myVehicleDistance = 0.;
            myTimeLoss = 0;
        }
    }
}
 
 
void
MSStageDriving::abort(MSTransportable* t) {
    myDestinationStop = nullptr;
    if (myVehicle != nullptr) {
        // jumping out of a moving vehicle!
        myVehicle->removeTransportable(t);
        myDestination = myVehicle->getLane() == nullptr ? myVehicle->getEdge() : &myVehicle->getLane()->getEdge();
        myArrivalPos = myVehicle->getPositionOnLane();
        // myVehicleDistance and myTimeLoss are updated in subsequent call to setArrived
    } else {
        MSTransportableControl& tc = (t->isPerson() ?
                                      MSNet::getInstance()->getPersonControl() :
                                      MSNet::getInstance()->getContainerControl());
        tc.abortWaitingForVehicle(t);
        MSDevice_Taxi::removeReservation(t, getLines(), myWaitingEdge, myWaitingPos, myDestination, getArrivalPos(), myGroup);
        myDestination = myWaitingEdge;
        myDestinationStop = myOriginStop;
        myArrivalPos = myWaitingPos;
    }
}
 
 
std::string
MSStageDriving::getWaitingDescription() const {
    return isWaiting4Vehicle() ? ("waiting for " + joinToString(myLines, ",")
                                  + " at " + (myOriginStop == nullptr
                                          ? ("edge '" + myWaitingEdge->getID() + "'")
                                          : (toString(myOriginStop->getElement()) + " '" + myOriginStop->getID() + "'"))
                                 ) : "";
}
 
 
bool
MSStageDriving::canLeaveVehicle(const MSTransportable* t, const SUMOVehicle& veh, const MSStop& stop) {
    const MSEdge* stopEdge = stop.getEdge();
    bool canLeave = false;
    if (t->getDestination() == stopEdge) {
        // if this is the last stage, we can use the arrivalPos of the person
        const bool unspecifiedAP = unspecifiedArrivalPos() && (
                                       t->getNumRemainingStages() > 1 || !t->getParameter().wasSet(VEHPARS_ARRIVALPOS_SET));
        const double arrivalPos = (unspecifiedArrivalPos()
                                   ? SUMOVehicleParameter::interpretEdgePos(t->getParameter().arrivalPos, stopEdge->getLength(),
                                           SUMO_ATTR_ARRIVALPOS, t->getID(), true)
                                   : getArrivalPos());
        if (unspecifiedAP || stop.isInRange(arrivalPos, veh.getLength() + MSGlobals::gStopTolerance)) {
            canLeave = true;
        }
    }
    if (myDestinationStop != nullptr) {
        if (!canLeave) {
            // check with more tolerance due to busStop size and also check
            // access edges
            const double accessPos = myDestinationStop->getAccessPos(veh.getEdge());
            if (accessPos >= 0) {
                double tolerance = veh.getLength() + MSGlobals::gStopTolerance;
                if (&myDestinationStop->getLane().getEdge() == veh.getEdge()) {
                    // accessPos is in the middle of the stop
                    tolerance += (myDestinationStop->getEndLanePosition() - myDestinationStop->getBeginLanePosition()) / 2;
                }
                canLeave = stop.isInRange(accessPos, tolerance);
            }
        }
    }
    return canLeave;
}
 
 
void
MSStageDriving::saveState(std::ostringstream& out) {
    const bool hasVehicle = myVehicle != nullptr;
    out << " " << myWaitingSince << " " << myTimeLoss << " " << myArrived << " " << hasVehicle;
    if (hasVehicle) {
        out << " " << myDeparted << " " << myVehicle->getID() << " " << myVehicleDistance;
    }
}
 
 
void
MSStageDriving::loadState(MSTransportable* transportable, std::istringstream& state) {
    bool hasVehicle;
    state >> myWaitingSince >> myTimeLoss >> myArrived >> hasVehicle;
    if (hasVehicle) {
        std::string vehID;
        state >> myDeparted >> vehID;
        SUMOVehicle* startVeh = MSNet::getInstance()->getVehicleControl().getVehicle(vehID);
        setVehicle(startVeh);
        myVehicle->addTransportable(transportable);
        state >> myVehicleDistance;
    } else {
        // there should always be at least one prior WAITING_FOR_DEPART stage
        MSStage* previous = transportable->getNextStage(-1);
        myOriginStop = (previous->getStageType() == MSStageType::TRIP
                        ? previous->getOriginStop()
                        : previous->getDestinationStop());
        if (myOriginStop != nullptr) {
            // the arrival stop may have an access point
            myOriginStop->addTransportable(transportable);
            myWaitingEdge = &myOriginStop->getLane().getEdge();
            myStopWaitPos = myOriginStop->getWaitPosition(transportable);
            myWaitingPos = myOriginStop->getWaitingPositionOnLane(transportable);
        } else {
            myWaitingEdge = previous->getEdge();
            myStopWaitPos = Position::INVALID;
            myWaitingPos = previous->getArrivalPos();
        }
        registerWaiting(transportable, SIMSTEP);
    }
}
 
// ---------------------------------------------------------------------------
// MSStageDriving::BookReservation method definitions
// ---------------------------------------------------------------------------
SUMOTime
MSStageDriving::BookReservation::execute(SUMOTime currentTime) {
    MSDevice_Taxi::addReservation(myTransportable, myStage->getLines(), currentTime, currentTime, myEarliestPickupTime,
                                  myStage->myOrigin, myStage->myWaitingPos, myStage->myOriginStop, myStage->getDestination(), myStage->getArrivalPos(), myStage->myDestinationStop, myStage->myGroup);
    // do not repeat if execution fails
    return 0;
}
 
/****************************************************************************/