[OSM-talk] Highway tags and other junk
Ben Robbins
ben_robbins_ at hotmail.com
Thu Dec 14 15:39:27 GMT 2006
>>Before you say these dont need to be labeled separately please note that
>>the average speed on the 1st type would be about 55mph, while on the 4th
>>it
>>would be about 15mph. A route planner must sort these apart.
>That can be covered with the speed limit tag.
It can't as the speed limit is 60mph for all of them. I was stating the
speed wich you would expect to travel at rather than the legal maximum
speed.
>Another reason why we sorely need a distinction between highway
>classification and surface type is a road in St Albans that has houses down
>it, but is basically a dirt track. At the moment I tagged it as
>highway=track but that's far from ideal.
The tracktype tag covers the surfaces information sufficiently. If a track
is covered in hardcore, then I think its suffieicnt information just to say
that its a tracktype=grade2, rather than state the materials as
limestone=yes, stonesize=moderate, mud=no etcetc. Although if a person
wanted to they could add these, I think usually its unnessesery.
>I think the best way to go would be to clearly separate the official
>classification (probably unclassified in these cases) from the physical
>features (width, surface condition, etc.) and features relevant for
>particular contexts (speed limit, safety for cyclists, pavement, etc.)
Tracktype does this. HIGHWAY states the political TRACKTYPE states the
phisical. Your responce ties in with the 1st tag bascially, and an
additional value would need to cover the phiisical attributes of the
highway. Tracktype could still do that if there were more tags under it,
but it wouldnt seem the correct word to use.
>Either you or I am mistaken. I don't believe that the highway tag
>implies (or should imply) any rights of way.
The only ones on there that dont state political information are
highway=track highway=steps and highway=tertiary, of wich I use neither as
they dont appear to currently fit in. Please explain why its wrong, but I
would still say that the highway tag should, and is mostly is, used for
stating the rights of way.
>in Denmark a track can be public, private or restricted
Thats my point. The track in itself doesnt hold any particualar access
right. Im not being UK-centric in any way. Hence the over all proposal is
to move to phisical attributes! sigh.
Ben
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