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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'>Very curious; I have also see railways
presented as roads occasionally.<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'>Also of note in the first example are the two
parallel railway lines coming from SSE (one a spur and one a rail that are
visible in Potlatch in edit more). Further to the east there are three tracks
running parallel, all railway=rail. From the aerial photography there appears
to be only one railway line (although there may be twin tracks close together
but there certainly aren’t two lines that far apart). I have seen this before
and deleted the parallel one but was not sure if I was doing the rights thing.
I don’t see any OSM tag to identify the number of parallel tracks which
would be useful rather that running twin tracks very close, or indeed running four
tracks parallel to each other but possibly this has been discussed in the past.<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 just noticed that railway
spurs and sidings, yards etc have recently been approved as OSM features, but
not as per the Tiger import. In the recently approved version all full width
tracks are shown as railway=rail and spurs and sidings have an additional tag
of service=spur or service=siding or service=yard. Are there any plans to have
a Bot run over the tiger information and update this tagging? Obviously it
would have to be planned carefully but the alternative of manual changes is tedious
in the extreme.<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/Map_Features#Railway">http://wiki.openstreetmap.org/index.php/Map_Features#Railway</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'><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'>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>
<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'>
talk-us-bounces@openstreetmap.org [mailto:talk-us-bounces@openstreetmap.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Dylan Semler<br>
<b><span style='font-weight:bold'>Sent:</span></b> 03 June 2008 00:52<br>
<b><span style='font-weight:bold'>To:</span></b> talk-us@openstreetmap.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Spam] [Talk-us] Problems
with Tiger railroad data</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><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I've noticed some problems with the TIGER railroad data is imported to
OSM.<br>
<br>
1. Spur designation inaccurate. While the majority of the main
lines seem to be accurately labled as "rail", there are /many/ places
where the distinction between rail and spur is inconsistant (i.e.[1]). I
suggest we either figure out how to fix this, replace all spurs in the <st1:country-region
w:st="on"><st1:place w:st="on">US</st1:place></st1:country-region> with rails,
or change mapnik, etc. to render spurs the same as rails. <br>
<br>
2. Railroads imported as roads. I've found at least one instance of
this[2]. Browsing this location on the tiger browser shows it properly as
a railroad[3]. Any thoughts as to what could have happened or what can be
done to fix these?<br>
<br>
What do people think?<br>
<br>
[1]<a href="http://www.openstreetmap.org/?lat=41.33535&lon=-88.75081&zoom=15">http://www.openstreetmap.org/?lat=41.33535&lon=-88.75081&zoom=15</a><br>
[2]<a
href="http://www.openstreetmap.org/?lat=41.5629&lon=-89.0471&zoom=13&layers=B00FT">http://www.openstreetmap.org/?lat=41.5629&lon=-89.0471&zoom=13&layers=B00FT</a><br
clear=all>
[3]<a
href="http://tiger.census.gov/cgi-bin/mapsurfer?act=in&infact=2&map.x=211&map.y=180&lat=41.5763359&lon=-88.9994125&wid=0.360&ht=0.130&iht=359&iwd=422&&on=CITIES&off=majroads&on=places&on=railroad&tlevel=-&tvar=-&tmeth=i&mlat=&mlon=&msym=bigdot&mlabel=&murl=&conf=mapnew.con">http://tiger.census.gov/cgi-bin/mapsurfer?act=in&infact=2&map.x=211&map.y=180&lat=41.5763359&lon=-88.9994125&wid=0.360&ht=0.130&iht=359&iwd=422&&on=CITIES&off=majroads&on=places&on=railroad&tlevel=-&tvar=-&tmeth=i&mlat=&mlon=&msym=bigdot&mlabel=&murl=&conf=mapnew.con</a><br>
-- <br>
Dylan<br>
<br>
Type faster. Use Dvorak:<br>
<a href="http://dvzine.org">http://dvzine.org</a> <o:p></o:p></span></font></p>
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