code: @XmlElementDecl(namespace = "http://www.opengis.net/citygml/transportation/1.0", name = "Track", substitutionHeadNamespace = "http://www.opengis.net/citygml/transportation/1.0", substitutionHeadName = "TransportationComplex")
      public JAXBElement<TrackType> createTrack(TrackType value) {
          return new JAXBElement<TrackType>(_Track_QNAME, TrackType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link TrackType }{@code >}
  
  @param value
  Java instance representing xml element's value.
  @return
  the new instance of {@link JAXBElement }{@code <}{@link TrackType }{@code >}