[OSM-newbies] Routing issue

[Mike Harris]

I think that there may be some purpose in tagging foot=yes as well as
highway=footway - but I'm not sure. I'm not clear that highway=footway
implies foot=yes as default (rather than foot=permissive, foot=no, etc.) -
and it might be a little dangerous if it did as "foot=yes" is recommended by
the wiki for UK public rights of way where this is a legal right to walk on
a footway. There is an argument for using foot=designated - but this is not
what the wiki says - and it seems to imply that the way is designed
primarily for walkers - whereas foot=yes can equally be used on public
bridleways, cycleways (whatever they are!) and restricted byways where the
way may be built to a standard allowing higher rights but these do not
exclude walkers and do not imply and priority as between different types of
user. The whole area is a little unclear - to me at least!
 
Thanks for the tip  regarding the sense of travel on roundabouts - it's
obvious - but only when it's pointed out! (:>)
 
Mike Harris
 


  _____  

From: Ed Loach [mailto:ed at loach.me.uk] 
Sent: 13 January 2009 10:10
To: newbies at openstreetmap.org
Subject: Re: [OSM-newbies] Routing issue



Are you able to send a permalink showing the footpath so we can look at the
tagging. If it is tagged highway=footway and there is not a car permission
tag then I would say routing a car along it is a bug in the yournavigation
website rather than anything you’ve done. The additional foot=yes I don’t
believe is necessary, though I think one of the popular editors (can’t
remember whether it was Potlatch or JOSM as I switch between them depending
what I’m mapping) adds it as a default when you select footway.

 

With regards roundabouts, I take it from your post you are in the UK. When
mapping larger roundabouts (tagged junction=roundabout) the direction it is
drawn indicates the one-way direction of the junction. The direction is as
indicated by the arrows in JOSM or the little roundabout symbol bottom left
in Potlatch.

 

In the case of mini-roundabouts (where a node is tagged as
highway=mini_roundabout, if I remember correctly) these need the tag
direction=clockwise adding in the UK, as the default is anti-clockwise. If
you look at the Osmarender layer at www.openstreetmap.org then when you have
zoomed in far enough you can tell the direction of the roundabouts by how
they are rendered. Picking a random example somewhere in the UK, the two
here:

http://www.openstreetmap.org/?lat=52.06324
<http://www.openstreetmap.org/?lat=52.06324&lon=-2.7183&zoom=16&layers=0B00F
TF> &lon=-2.7183&zoom=16&layers=0B00FTF

are both correctly tagged with the direction tag.

 

I hope this helps

 

Ed

 

From: newbies-bounces at openstreetmap.org
[mailto:newbies-bounces at openstreetmap.org] On Behalf Of Bob Hawkins
Sent: 13 January 2009 09:54
To: newbies at openstreetmap.org
Subject: [OSM-newbies] Routing issue

 

I am concerned that a route from my home by car in
http://www.yournavigation.org/ takes me across a local footpath that I added
in JOSM with the tags foot = yes and highway = footway (I think I put in the
additional foot = yes because, being new to OSM mapping then, other paths
already in the area were so designated.).  If this is incorrect or
insufficient to avoid a route by car using such links, I must change all I
have done to date, which is quite considerable in my local area.  I should
appreciate some advice.

I notice, too, that in obtaining a route over a longer distance, it
sometimes appears to go around roundabouts to the right instead of left,
with turn instructions accordingly incorrect.  Clearly, routing highlights
many issues which we who enter data into OpenStreetMap might not be aware
of.  Is there specific advice written anywhere?

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