[Talk-us] Chicago L updates

[Ben Miller]

I've been putting in some time on the Brown Line in Chicago, adding detail
to the stations and plugging in the Public Transport[1] tags. I'm pretty
much done with it, and I thought I'd throw it out there to see if anyone
has any comments. The Overpass diagram generator seems to like it [2] [3]
but the PT tag system is kind of complicated and I may have missed
something.

One specific question: Since the Brown line is a loop at one end, it
doesn't have two defined terminals, although it definitely has two
directions (towards Kimball and towards the Loop). Does anyone have any
guidance as to where the two route relations should begin/end? As it is I
set Merchandise Mart as the final station for the Loop-bound train, since
the operators usually change the train's destination sign to Kimball
after leaving the Mart. Likewise the first station for the Kimball-bound
relation is Washington/Wells. Maybe I'm overthinking this, but if there's a
standard way of treating routes that loop back on themselves, I'm unaware
of it.

Lastly, I doubt I have the patience to update the whole CTA system, so if
anyone else has an interest in pitching in, go ahead. I know there are at
least a couple more Chicago-area mappers who ride the L. The USGS
Large-Scale imagery in Chicago is very detailed and more recent than the
highest zoom available through Bing.

Ben

[1] http://wiki.openstreetmap.org/wiki/Proposed_features/Public_Transport
[2]
http://www.overpass-api.de/api/sketch-line?network=CTAref=Brownoperator=correspondences=50width=800height=500font-size=12force-rows=max-cors-per-line=max-cors-below=style=
[3]
http://www.overpass-api.de/api/draw-line?network=CTAref=Brownscale=10.0pivot-lon=-86font-size=12.0
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Re: [Talk-us] Chicago L updates

[Kristian M Zoerhoff]

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Hash: SHA1

On 2012-11-15 14:37, Ben Miller wrote:
 
 One specific question: Since the Brown line is a loop at one end,
 it doesn't have two defined terminals, although it definitely has
 two directions (towards Kimball and towards the Loop). Does anyone
 have any guidance as to where the two route relations should
 begin/end? As it is I set Merchandise Mart as the final station for
 the Loop-bound train, since the operators usually change the
 train's destination sign to Kimball after leaving the Mart.
 Likewise the first station for the Kimball-bound relation is
 Washington/Wells. Maybe I'm overthinking this, but if there's a
 standard way of treating routes that loop back on themselves, I'm
 unaware of it.

I think this looks just fine. Purple line (at least the rush hour
express variant) will have the same structure, and I assume the Orange
Line must do something similar (perhaps at Roosevelt), as will Pink
(at Morgan/Lake?).

 Lastly, I doubt I have the patience to update the whole CTA system,
 so if anyone else has an interest in pitching in, go ahead. I know
 there are at least a couple more Chicago-area mappers who ride the
 L. The USGS Large-Scale imagery in Chicago is very detailed and
 more recent than the highest zoom available through Bing.

I'm way out in the 'burbs, but /might/ be able to pitch in (Blue Line
is the one I ride the most).

Should this be extended to Metra? The Metra lines still need work in
general (I fixed up the Milwaukee District West and Electric District
lines a while back, but I haven't touched any other relations since).


- -- 
Kristian M Zoerhoff
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[Talk-us] virtual mappy hour posted on osm.us

[Martijn van Exel]

Hi all,

I posted the link to the first Virtual Mappy Hour video on osm.us:

http://www.openstreetmap.us/2012/11/virtual-mappy-hour-1/

Next one when? In two weeks, say Monday the 26th?

Martijn

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Martijn van Exel
http://oegeo.wordpress.com/
http://openstreetmap.us/

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