[mkgmap-dev] Parallel major roads to cycleways

Fri Mar 17 08:20:11 GMT 2017

Interesting idea Gerd but those roads are also arterial connections to get in or out of the city so for commuting cyclists essential.

A benefit to have such hook is that I can copy the name of the major highway to the parallel cycleway if it lacks a name. This is for address search essential, since the major highway is often not routable in my maps.

Another benefit could be that I can force the router to route on those parallel and often obligatory cycleways and give a high penalty (lesser road_speed or road_class)  for the major highway sections. In OSM those highways often lacks a tag bicycle=no or bicycle=use_sidepath where in reality the parallel cycleways are obligatory.

________________________________
Van: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> namens Dave Swarthout <daveswarthout at gmail.com>
Verzonden: donderdag 16 maart 2017 03:40:10
Aan: Development list for mkgmap
Onderwerp: Re: [mkgmap-dev] Parallel major roads to cycleways

There is a fledgling effort underway here in Chiang Mai to do a similar thing. This effort centers around the desirability of a route for bicycling. It deals with scenic vs dangerous roads for cycling and the 3 point system it uses might be insufficient for your needs but it might be adapted. Worth a look at any rate.

https://wiki.openstreetmap.org/wiki/WikiProject_Thailand#Bicycling_tagging_.28currently_for_Chiang_Mai_only.29

Dave

On Thu, Mar 16, 2017 at 5:06 PM, Gerd Petermann <GPetermann_muenchen at hotmail.com<mailto:GPetermann_muenchen at hotmail.com>> wrote:
Hi,

I just want to share an idea which might be interesting for cycling maps:
In Germany and probably also Austria) many major roads have a parallel cycleway close to it, often only separated by a patch of grass or natural=tree_row.
Example: A way with bicycle=designated :
http://www.openstreetmap.org/way/243499929
runs next to highway=primary B213
http://www.openstreetmap.org/way/328470949

I think nearly no cyclist likes to use those ways -- they are just a bit safer but still lots of cars are running with 100 km/h next to you --
so I think it would be good to have a way to separate them from other ways where no major road is close.

A possible way would be this:
Simiar to the new ResidentialHook which sets the mkgmap:residential tag we might implement a
hook which collects major roads and calculates an area around it (maybe 20m on both sides).
Each way (maybe only those with highway=* ) could be checked against those areas in a way that a rule could
decide to "dislike" a way which is mostly within such an area when the map is for cyclists.
I guess bridges and tunnels (or more generally the layer tag) needs special handling here.

Questions:
1) Do you think this would good to have?
2) If yes, what kind of information would be needed in the style?

Gerd

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--
Dave Swarthout
Homer, Alaska
Chiang Mai, Thailand
Travel Blog at http://dswarthout.blogspot.com
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