[mkgmap-dev] Runways on highways

Sun Jun 6 20:45:12 BST 2010

Someone notified me that this highway that serves as a temporary runway 
during military exercises is not being considered for routing:

http://www.openstreetmap.org/browse/way/45772320

aeroway = runway
highway = primary
name = Turuntie
ref = 41

The obvious reason is that in styles/default/lines, aeroway=runway comes 
before any highway=* tags. I confirmed the non-routeability on my Edge 
705, and my fix sort of worked:

Index: resources/styles/default/lines
===================================================================

--- resources/styles/default/lines	(revision 1652)
+++ resources/styles/default/lines	(working copy)
@@ -8,8 +8,8 @@
  # and http://wiki.openstreetmap.org/wiki/Mkgmap/help/Custom_styles
  # for more information.
  
-aeroway=runway [0x27 resolution 20]
-aeroway=taxiway [0x27 resolution 24]
+aeroway=runway [0x27 resolution 20 continue]
+aeroway=taxiway [0x27 resolution 24 continue]
  
  # Contours take their name from the elevation setting.
  contour=elevation & contour_ext=elevation_minor

I would have preferred to see the runway on top of the highway, but the 
Edge 705 rendered only the highway. In other words, the Garmin line for 
the aeroway=runway object is just wasting memory. QLandkarteGT showed 
both lines on top of each other.

I think that we should just move the aeroway=* rules below highway=* so 
that any highways that serve as temporary airfields will be translated 
as highways. Any objections to that? Are there any aeroway=* that are 
also tagged as highway=service, for example? Should they require some 
special treatment?

	Marko

