[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=CTA&ref=Brown&operator=&correspondences=50&width=800&height=500&font-size=12&force-rows=&max-cors-per-line=&max-cors-below=&style=
[3]
http://www.overpass-api.de/api/draw-line?network=CTA&ref=Brown&scale=10.0&pivot-lon=-86&font-size=12.0
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