[OSM-talk] Cycleways wiki doc enhanced

[Richard Mann]

2010/1/4 Lauri Kytömaa <lkytomaa at cc.hut.fi>

> The national officials here are allegedly constructing a
> database for a online routing service for cycling and they have concluded
> that the information can not be described with sufficient detail for
> very accurate routing "as tags on the roads".

Routers are generally in a much better position to process tags-on-roads
into what they want than renderers are to process multiple parallel ways
(howsoever linked) into tags-on-roads.


> Just try describing this intersection (which isn't that complex, even)
> solely with tags on the "proper" roads

http://www.openstreetmap.org/?&lat=60.20853&lon=24.94616&zoom=17&layers=00B0FTF
Well you could probably do it with tags-on-roads up to the crossings, then a
cycleway linking the crossings (by the way, if you put bicycle=yes on those
crossings, they will show in green). This might generate spurious turn
instructions in a router (depending on the intelligence of the router), but
would avoid showing the cycleway in the middle of the road at lower zooms.

Richard
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