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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks for that Jeffrey. I agree entirely
that rendering should follow tagging and not lead tagging, my main concern at
the moment is that <st1:country-region w:st="on"><st1:place w:st="on">UK</st1:place></st1:country-region>
rendering (blue for motorway and orange for secondary) is encouraging
inappropriate tagging. I think we agree that one should clarify first how to
tag what is on the ground and then decide on how to render the data. Based in
the <st1:country-region w:st="on"><st1:place w:st="on">UK</st1:place></st1:country-region>
I am reliant on tiger and aerial photography to inform my choice of tagging Am
I right in thinking that the synthesis of this discussion is being added to
this wiki page?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><a
href="http://wiki.openstreetmap.org/index.php/Highway_tag_usage">http://wiki.openstreetmap.org/index.php/Highway_tag_usage</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Fyi I have been doing a lot of work on the
<st1:City w:st="on">San Francisco</st1:City> bay area (Golden Gate down to <st1:City
w:st="on"><st1:place w:st="on">Foster City</st1:place></st1:City>) over the
past week or so and I am having been working on the road classes tags today,
hence my question. I have been:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Lifting the road class of roads tagged as
secondary but which have flyovers and divided carriageways etc and making them
trunk (but motorway might be more appropriate)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Lifting ‘braded roads’ with
two carriageways in tiger data from residential to primary.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Lifting some other roads from residential
to secondary where they are clearly significant feeder roads for an area.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Rationalising link roads to get them to
match the class of road they are feeding (there were lots of motorway_link
roads feeding secondary for example).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>My first pass looked pretty ugly. I am currently
waiting for osmarender to render my latest adjustment to the primary network in
the area and would then be grateful for feedback as to whether I am on the
right lines (but do wait until tomorrow when the rendering should have
finished).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I have also being doing a lot of ‘de-duplicating’
of roads pre/post tiger. In general I have kept pre-tiger freeways and kept
tiger for other roads. I have also given a pass over most of the freeway
network in the bay area in the past week and have added the second carriageways
where required and cleaned up the geometry and sorted out some of the junctions.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Peter<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Jeffrey Martin
[mailto:dogshed@gmail.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 20 April 2008 15:42<br>
<b><span style='font-weight:bold'>To:</span></b> Peter Miller<br>
<b><span style='font-weight:bold'>Cc:</span></b> Talk Openstreetmap;
talk-us@openstreetmap.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [OSM-talk] tagging
and rendering highways in the <st1:country-region w:st="on"><st1:place w:st="on">USA</st1:place></st1:country-region>
and elsewhere</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Sat, Apr 19, 2008 at 1:15 AM, Peter Miller <<a
href="mailto:peter.miller@itoworld.com">peter.miller@itoworld.com</a>>
wrote:<o:p></o:p></span></font></p>
<div link=blue vlink=purple>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=2 face=Tahoma><span lang=EN-GB style='font-size:10.0pt;
font-family:Tahoma'>Major non-interstate highways that have traffic light free
multi-level junctions etc should be tagged as 'trunk' and possibly also be
rendered orange but with less grand route numbers to differentiate them from
interstate routes.</span></font><o:p></o:p></p>
</div>
</div>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>This statement really bothers me. First, we must make every effort to
keep the data separate<br>
from the rendering.<br>
<br>
Consider a section of <st1:Street w:st="on"><st1:address w:st="on">Interstate
Highway</st1:address></st1:Street> that structurally resembles a <st1:country-region
w:st="on"><st1:place w:st="on">UK</st1:place></st1:country-region> motorway.
This section of road may also be part of a state highway. It's not uncommon for
a section of<br>
road to have both a state highway sign and an Interstate sign. In some very
barren<br>
areas an Interstate may have standard intersections without ramps. As in your
example above a road that is not an Interstate may have multiple levels and
ramps.<br>
<br>
Whatever scheme we agree on must keep the road's structure separate from legal
classifications. I checked and the wiki still says that the highway tag should
be<br>
used to indicate what the road looks like. My reasoning can be found on the
talk page.<br>
<br>
Whether a road is an Interstate, state highway, county road, etc. should be
indicated in another data field.<br>
<br>
I haven't been following all the conversations lately, but I remember an
Australian<br>
was tagging a gravel road as a motorway because it was the main road between<br>
two rural cities and he wanted it prominently rendered. Perhaps in this case
some<br>
kind of importance tag should be used.<br>
<br>
I think free tagging is great, but we should not allow multiple definitions for
each tag.<br>
A tag should not indicate both it's legal status and it's structure, although
one might<br>
imply the other under certain circumstances.<br clear=all>
<br>
-- <br>
<a href="http://bowlad.com">http://bowlad.com</a> <o:p></o:p></span></font></p>
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