_clusterIdByLocationId.put(cluster.getLocationId(), cluster.getId());
} else if (element instanceof VehicleTypeElement) {
VehicleTypeElement vehicle = (VehicleTypeElement) element;
_vehicleTypesById.put(vehicle.getId(), vehicle);
} else if (element instanceof RouteDescriptionElement) {
RouteDescriptionElement route = (RouteDescriptionElement) element;
AgencyAndId id = new AgencyAndId(route.getOperatorId(),
route.getOperatorId() + "-" + route.getRouteNumber());
RouteMetadata metadata = getMetadataForRouteId(id);
metadata.addRouteDescription(route);
} else if (element instanceof OperatorElement) {
OperatorElement operator = (OperatorElement) element;
OperatorElement existing = _operatorsById.put(operator.getOperatorId(),