A 'well known' routing problem.
Exists for areas of concrete too ... I think if you tag an area as
pedestrian, or as steps .. routes will not go across them.
For an area of steps the bottom, top and sides can have ways that are
paths ... that gets around the routing issue.
In the longer term routes should solve the problem .. they don't see it
as an urgent issue as there are not many people using pedestrian routing.
On 01-Feb-18 01:45 AM, Jonathon Rossi wrote:
It appears that this is a long standing enhancement request for
GraphHopper:
https://github.com/graphhopper/graphhopper/issues/82
On Thu, Feb 1, 2018 at 12:17 AM Jonathon Rossi <[email protected]
<mailto:[email protected]>> wrote:
To clarify, both Google Maps and Strava routing can't do this
either, I was trying to work out if OSM could do this.
On Thu, Feb 1, 2018 at 12:10 AM Jonathon Rossi <[email protected]
<mailto:[email protected]>> wrote:
In the past I've mapped exactly what I've surveyed on the
ground in local parks, however I've recently been using the
OSM routing feature rather than from other services and I've
discovered it can't route directly across a park that is just
grass.
In the following example, I've mapped:
- the short grass track (eastern side) that council are likely
inadvertently making each time they bring vehicles through the
gate to mow the park (the rest of the park boundary has timber
bollards),
- trails that lead from the Greater Glider Conservation Area
out into the park, the small bit of the "Trail Circuit" in the
park isn't actually a well defined path it just opens up but
it isn't grass and the amount of trees keep it path like
- other well formed paths that lead out to roads
https://www.openstreetmap.org/directions?engine=graphhopper_foot&route=-27.54259%2C153.22173%3B-27.54227%2C153.21904#map=18/-27.54200/153.22056
The OSM Wiki states:
> Ways (highway=path or highway=footway) leading into a park
from a road, should always be connected to the road for
routing purposes. It's debatable whether they should connect
to the park area with a shared node, or cross over the polygon
without connecting. TODO discuss
> (https://wiki.openstreetmap.org/wiki/Tag:leisure=park)
If a park is just a big grass area (with maybe a few obstacles
like a playground) then it feels like the responsibility of
the routing engine to just do this (maybe with an access tag
to say it is okay to do so). It feels wrong for us mappers to
map a "grass" path through the park from each entrance that we
feel is a main thoroughfare.
Am I missing something, have others "fixed" this problem
elsewhere?
Jono
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