[Talk-ca] http://www.gtfs-data-exchange.com/agency/oc-transpo/

Sam Vekemans acrosscanadatrails at gmail.com
Sat Apr 24 15:31:10 BST 2010


Oops,
I forgot i just repeated myself (earlier in the thread) sorry,

Have a great day,
Sam

On 4/21/10, Sam Vekemans <acrosscanadatrails at gmail.com> wrote:
> There is also the talk-transit at opentstreetmap.org discussion list, the
> folks
> who are subscribed would be interested to hear your methods/ideas about
> this.   Just cc: that list in your discussions :)
>
> http://lists.openstreetmap.org/listinfo/talk-transit
>
> BTW, once the licence is correct, just simply convert the data to .osm
> format and make it available to the community (via this list  & making a
> wiki page).   & Remind people to only copy in those stops in a small area
> (that they know of) and can handle on their own.
> Splitting the .osm file into geographical areas small as possible would
> really help, or even breaking it down into different types of bus stops (if
> that information is available)  would certainly help. (quad-tree tiling)
>
> This method, when combined with other methods,  ie.   WMS layer maptile
> overlay / OpenJUMP automatch Diff files.   Is the ideal solution, as it can
> involved the greater community, who has varying levels of technical
> ability.    The source data doesn't need to be changed, but  it can be
> enhanced (externally) by adding in the OSM NODE ID, into the source
> database.   So then it can be cross-referenced to ensure quality control.
>
>
> Cheers,
> Sam
>
>
> Twitter: @Acrosscanada
> Blogs: http://acrosscanadatrails.posterous.com/
> http://Acrosscanadatrails.blogspot.com
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> @Acrosscanadatrails
>
>
> On Wed, Apr 21, 2010 at 11:41 AM, Robert Damphousse
> <rjdampho at gmail.com>wrote:
>
>> GTFS is a format that Google started for storing information about public
>> transit systems:
>>
>> http://code.google.com/transit/spec/transit_feed_specification.html
>>
>> If you have specific questions about the format that are not addressed by
>> the documentation, you can try the transit developers group:
>>
>> http://groups.google.com/group/transit-developers/
>>
>> Keep in mind that the format is far from being a "standard", and nearly
>> every transit agency has something in their GTFS dataset which is not
>> part
>> of the current specification.  There are also a few tools for importing
>> GTFS
>> data into a SQL database, this may help you take a better look at what is
>> in
>> the data.  Here is one such tool:
>>
>> http://cbick.github.com/gtfs_SQL_importer/html/index.html
>>
>> Cheers,
>> Robert
>>
>> On Wed, Apr 21, 2010 at 11:29 AM, Thomas Cort <linuxgeek at gmail.com>
>> wrote:
>>
>>> The coordinates don't appear to be very accurate. I tried plotting a
>>> few points on a map. They are pretty close sometimes, but not dead on
>>> (maybe I just picked the few inaccurate ones to test). The bus stop
>>> number (asset_ref in OSM / stop_code in GTFS) is not present in
>>> stops.txt. There are already a number of OC Transpo stops in OSM, so
>>> any import would have to check for nearby duplicates. Lastly and most
>>> importantly, there is no license information* and it isn't marked on
>>> the GTFS exchange site as official.
>>>
>>> * Note, I'm one of the organizers of Open Data Ottawa
>>> (opendataottawa.ca). The city is likely going to be opening up some
>>> data sets soon. The motion has passed the IT sub comittee and just has
>>> a couple of more steps to go. Hopefully that will clear up the license
>>> uncertainty and give the public an official OC Transpo data set. I'll
>>> keep you posted.
>>>
>>> -Tom
>>>
>>>
>>>
>>> On Wed, Apr 21, 2010 at 1:45 PM, Richard Weait <richard at weait.com>
>>> wrote:
>>> > On Wed, Apr 21, 2010 at 1:30 PM, john whelan <jwhelan0112 at gmail.com>
>>> wrote:
>>> >> There seems to be a collection of bus stop data here for different
>>> cities
>>> >> including Ottawa.  Any idea who is putting it up or if there are any
>>> scripts
>>> >> for import etc?
>>> >
>>> > How is that data licensed?
>>> >
>>> > _______________________________________________
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>>> > Talk-ca at openstreetmap.org
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>>> >
>>>
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>>
>>
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>


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