Hi Andrzej, I've committed the patch with r3812. I found quite a lot of aeroway=runway in combination with highway=* http://overpass-turbo.eu/s/mNZ Do you see a way to add some overlay line to mark it special without using a TYP file? Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej@poczta.onet.pl> Gesendet: Dienstag, 14. Februar 2017 11:43:28 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] aeroway in default style Hi Gerd, I have removed is_closed() form polygon file and changed resolution of aeroway=heliport to match aeroway=aerodrome. Here attached patch v3. I miss a bit explanation, how mkgmap process objects. It looks reasonable though to forward only closed lines to polygon processing. -- Best regards, Andrzej