@Override
  public void handleEvent(PersonLeavesVehicleEvent event) {
    if (transitDriverIds.contains(event.getPersonId())) return;
    try {
      if (ptVehicles.keySet().contains(event.getVehicleId())) {
        TravellerChain chain = chains.get(event.getPersonId());
        chain.traveledVehicle = true;
        PTVehicle vehicle = ptVehicles.get(event.getVehicleId());
        double stageDistance = vehicle.removePassenger(event.getPersonId());
        Trip trip = chain.getJourneys().getLast().getTrips().getLast();
        trip.setDistance(stageDistance);
        trip.setAlightingStop(vehicle.lastStop);
      } else {
        driverIdFromVehicleId.remove(event.getVehicleId());
      }

    } catch (Exception e) {
      System.err.println(e.getStackTrace());
      System.err.println(event.toString());
    }
  }