Hi all, it was discussed before: http://gis.19327.n8.nabble.com/RoadMerger-tp5791849p5792653.html My patch probably doesn't work with overlay lines (yet). Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Gerd Petermann <GPetermann_muenchen@hotmail.com> Gesendet: Mittwoch, 5. Mai 2021 12:05 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: [mkgmap-dev] patch: improve RoadMerger: allow to merge roads with reversed points Hi all, up to now RoadMerger doesn't merge (combine) two roads if the have different directions. This is OK for oneway roads but I see no need for this with other roads. The attached patch changes this. It has an influence on file size (safes a few KB in each tile) and very likely also on routing, hopefully to the better/faster. It also reduces zig-zagging in the low-res-opt branch. Strangely enough almost all was already implemented, so maybe WanMil (the original author) tried that before and found a reason not to do it. Will search the archives later... Gerd