RWB symbol: airport
Claus A. Färber (<a href="//commons.wikimedia.org/wiki/User:3247" class="mw-redirect" title="User:3247">3247</a>)
vector data by <a rel="nofollow" class="external text" href="http://www.bast.de">Bundesanstalt für Straßenwesen</a> (bast; <i>Ferderal Institute for Road Traffic</i>)