My current approach is to evaluate the results of the style, so it is up to the author to decide what
a pedestrian-only way is.
by bike. I am aware that these checks must be ignored when a special cycling
I am trying to produce test data to find out in what case Garmin prefers a small detour,
this should help to find concrete rules.
To: mkgmap-dev@lists.mkgmap.org.uk
From: extremecarver@gmail.com
Date: Tue, 11 Aug 2015 10:44:06 +0200
Subject: Re: [mkgmap-dev] sharp angles and routing
Well - what is a strict pedestrian only way? highway=pedestrian -
often can be used with bikes too (going slower)
highway=footway -- often still outside cities and used for mtbiking
though maybe not allowed.
highway=path & bicycle=no ---> very often nice mtbike trails
in countries where mtbiking is mainly forbidden like
Baden-Wuerttemberg or Austria.
And yeah - oneways could be excluded - but needs some care to not
exclude them (for cycling maps) if oneway:bicycle=no;
bicycle:oneway=no; oneway:bicycle=both; ( cycleway=* &
cycleway!=oneway ) would be the most common keys which mean cycling
against oneway direction is allowed.
For me excluding all ways that get tagged road-class=0 or 1, and
road-speed=0 could be excluded (but sometimes I use continue and
double ways so it exists with say road-class=4, road-speed=2 as well
as road-class=0, road-speed=0 in order to get me through sharp turns
- if the sharp angle fixing would work well - maybe I could drop
this).
On 11.08.2015 09:52, Gerd Petermann
wrote:
Hi Felix,
okay, I just try to find some criteria so that we find those
nodes + arcs which really cause
trouble. A lot of sharp angles are between oneway roads which
don't allow traveleling
the sharp angle.
I think that also means that I can add code to ignore sharp
angles on pedestrian-only
ways.
Gerd
Date: Tue, 11 Aug 2015 09:39:11 +0200
From:
extremecarver@gmail.com
To:
mkgmap-dev@lists.mkgmap.org.uk
Subject: Re: [mkgmap-dev] sharp angles and routing
Well - not in Pedestrian mode. I meant if you design a
map with road-class=4 as preferred way for pedestrians...
Then of course using a non pedestrian profile for routing
so it chooses road-class=4 or 3 preferably.
For Pedestrian mode chosen - there is no time penalty for
sharp turns - though I did not test if it would prefer ways
that point towards the destination at intersections.
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--
keep on biking and discovering new trails
Felix
openmtbmap.org & www.velomap.org
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