[Imports] Mass Bus Data

Metcalf, Calvin (DOT) calvin.metcalf at state.ma.us
Fri Aug 12 21:08:26 BST 2011

I don't trust myself to deal with the command line this late on a Friday, if your able to do it this weekend, that would be awesome, if not I can almost definitely do it Monday morning.   Thank you for the help.
From: joshthephysicist at gmail.com [mailto:joshthephysicist at gmail.com] On Behalf Of Josh Doe
Sent: Friday, August 12, 2011 3:25 PM
To: Metcalf, Calvin
Cc: imports at openstreetmap.org
Subject: Re: [Imports] Mass Bus Data

Since it's not likely I'll finish the conflation plugin any time soon, I'd just manually merge the nodes. If you check the MassDOT talk page I show how you can pretty quickly manually merge the nodes (123 by my count). Remember the second node you select will determine the location of the merged node. Also, you may want to remove the attribution/source tags of the OSM data, as they're all old MassGIS info anyways, that will speed up the merge process.


If you can't get to it, I'm sure I could do it this weekend. By the way, the quality of the MBTA data seems of higher quality than the OSM data, at least spatially speaking.

Thanks for being so involved!


On Fri, Aug 12, 2011 at 1:59 PM, Metcalf, Calvin (DOT) <calvin.metcalf at state.ma.us<mailto:calvin.metcalf at state.ma.us>> wrote:
I created a wiki page explaining the tags here <http://wiki.openstreetmap.org/wiki/MassDOT> http://wiki.openstreetmap.org/wiki/MassDOT
    On second look it seems that very few of the current train stations (less then 20) have additional data that it would make sense to keep the other ones seem to have either no attributes beyond massgis import and highway=bus_stop, or have a bus route reference in in one of many different ways.
The file I made is here http://dl.dropbox.com/u/37626989/mbtabus.osm.zip where do folks suggest I go from here?

From: joshthephysicist at gmail.com<mailto:joshthephysicist at gmail.com> [mailto:joshthephysicist at gmail.com<mailto:joshthephysicist at gmail.com>] On Behalf Of Josh Doe
Sent: Friday, August 12, 2011 1:22 PM
To: Metcalf, Calvin
Subject: Re: [Imports] Mass Bus Data

Oh and another reason to have others look at the data before uploading is to make sure the tags are correct, no incorrect mappings, etc. Many eyes help to catch this sort of thing.
Thanks for being involved!

On Fri, Aug 12, 2011 at 1:20 PM, Josh Doe <josh at joshdoe.com<mailto:josh at joshdoe.com>> wrote:
On Fri, Aug 12, 2011 at 1:03 PM, Metcalf, Calvin (DOT) <calvin.metcalf at state.ma.us<mailto:calvin.metcalf at state.ma.us>> wrote:
I'm getting ready to upload the bus data.
It seems some people already started putting in some bus data (there are 109 that look to overlap my data), is there a way to update/delete these/make them invisible? While some of them look to just be out dated dumps from massgis others look to have work put in.   (for reference there are 8057 stops that I'm about to upload)

By upload do you mean to the OSM database or to a file host for other OSM contributors to download and merge? Hopefully it's the latter, so that the OSM community can look at the data, the tags, etc and can help with the process. We certainly don't want to just delete the existing 109 stops, but rather update them with the new tags/position (if appropriate). While somewhat tedious, merging 109 stops (with JOSM's merge command) won't take too terribly long, and is a crucial step to take. If you don't wish to do this step, then consider uploading the data for others to use.

I started a conflation plugin for JOSM [0] intended exactly for this purpose, for my county's bus data (~4000). The algorithm works quite well, but I got stalled when designing the user interface for reconciling differences. I'd like to finish it but like Ian said, I've been too busy in real life to continue at the moment.


[0]: http://wiki.openstreetmap.org/wiki/Conflation/Nodes

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/imports/attachments/20110812/f6988a51/attachment.html>

More information about the Imports mailing list