A public transport link is a link traversed in a route using public transport.
In addition to its base type RouteLinkType, the
PublicTransportLinkType defines the following attributes:
Name of the stop at the end of the link.
Reference key to the PublicTransportLine object. To reduce data volume, the PublicTransport element is not directly embedded in the ManeuverType object, but is swapped out into the Route element.