I would like to adjust a rudimentary drawn area (neighborhood) so that it uses the same nodes as the nearby streets. Doing it by hand seems very combersome - I use "a" or a nearby plus symbol to create a new node on the way, then I select it, and shift+select nearby street node, and hit "m" (merge). How do I select "bad" line, and make it auto-join all the nearby nodes along the way, possibly with clicks or a keystroke. I know about "follow", but that only works for a new drawing.

2 Answers 2


JOSM has a follow mode. Draw your way by using two consecutive nodes of an existing way, then just repeatedly press f to follow this way.

However most OSM editors are against joining highways with areas. Therefore I suggest to draw the neighborhood area completely separate instead of re-using nodes from the street.

  • thx, but what about existing ways - if I have two ways right next to each other (two neighborhoods next to each with a mutual border), I would like to reuse that way segment, instead of having two separate sets of nodes. Is there a way to select one way and interactively glue it with another? Nov 4, 2016 at 15:33
  • My personal workflow is to split one of the areas at the shared border, delete this way and re-draw it along the existing way of the other border using follow mode. JOSM has various advanced tools in various addons, maybe there is an alternative approach.
    – scai
    Nov 4, 2016 at 16:46

Contourmerge plugin.

Beware is it very powerful.

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