GTFS-realtime Tutorials

[Brian Ferris]

Hey everybody,

I've been working on a series of tutorials around GTFS-realtime that I think you might find useful.  The tutorials cover a variety of aspects of working with GTFS-realtime data, for both agencies and developers.  There are five tutorials in total:

1) I give a brief intro to GTFS-realtime and show how to produce a GTFS-realtime alerts feed: http://goo.gl/zS7ti

2) I show how to produce GTFS-realtime trip update and vehicle position feeds: http://goo.gl/y1er7

3) I show how to consume a GTFS-realtime feed, with a simple visualization of vehicle positions: http://goo.gl/odBJP

4) I talk about GTFS-realtime's place in the API ecosystem and using GTFS-realtime to power OneBusAway: http://goo.gl/eTaag

5) I link to a number of other GTFS-realtime resources, including various adapters and plugins that work with the spec: http://goo.gl/onUpw

I hope these tutorials are helpful in your own work with real-time transit data.

Thanks,

Brian

[kee...@gmail.com]

Hi Brian,

 

Great tutorial. I'm a total new to this and looking more at the high level requirements in order to have GTFS-Realtime implemented. I was wondering if you could help me with the following questions:

 

1. What inputs are required to create the GTFS-Realtime feed (eg. vehicle location, departure times, etc).

2. Where to store the information (eg. in a mysql db, etc).

3. How to generate the feed from example a mysql db?

4. Does GTFS-Realtime actually replace GTFS or does it complement it. So, would both feeds be required (or at least one submission of the GTFS to Google to be used as a baseline)?

 

Many Thanks.

[Sandy]

hi

I am learning GTFS and I need some detail information.

following Urls you have mentioned are not working for me so could you please provide me other alternative if you have ?

[Gregory Shavers]

This looks awesome. I'm working on a bus application now and I see this helping me on a great deal.

[Tenario Powell]

Hi Brian,

I hope all is well. Google+ is down now. Is there any way you can send me these tutorials please?

On Tuesday, March 6, 2012 at 4:34:24 AM UTC-5, Brian Ferris wrote:

[Tenario Powell]

Google plus has shutdown as of April. Will you send me the tutorials to tena...@gmail.com

[Nikhil VJ]

Hi, this is not in reply to any earlier posts on this thread, but sharing as relevant to the same topic. 

I've posted a python program in notebook format (so you can see both code and output line by line) here for "unboxing" a VehiclePosition realtime feed. 

https://kyso.io/answerquest/delhi-gtfs-rt-feed-file-analysis

Python programmers wanting to learn up gtfs-rt, this covers:

- what packages to install to be able to work with gtfs-realtime feeds in python

- how to load the .pb file as a "gtfs_realtime_pb2.FeedMessage()" object

- how to convert the data in it to json or its python equivalent "dict" so you can work with it

- how to convert the data in it to a pandas table

Learners can ignore the parts after the conversion to table - that's specific to that particular feed - checking for duplicates etc.

Cheers,

Nikhil VJ, Pune, India

https://nikhilvj.co.in

[WSDOT WSF]

Hi Brian,

I'm a newbie for GTFS-RT. Could you please let me know how could I find your tutorials?

Thank you,

Dong Tran

[Sean Barbeau]

Hi all,

We're working on re-posting some of Brian's tutorials.

In the mean-time, you can find links to the archived content here:

• https://web.archive.org/web/20190319025904/https://plus.google.com/116552831948529744090/posts/SPn9e6pEbdf
• https://web.archive.org/web/20190319025904/https://plus.google.com/116552831948529744090/posts/9TuSp1GWQn8
• https://web.archive.org/web/20190319025905/https://plus.google.com/116552831948529744090/posts/YCrsE9gKcUG
• https://web.archive.org/web/20190319025906/https://plus.google.com/116552831948529744090/posts/DXu4VmFAtG2
• https://web.archive.org/web/20190319025907/https://plus.google.com/116552831948529744090/posts/XCS5F2D2PYM

(Somewhat ironically, the archive is down right now as of this posting, but should be back up soon)

Sean

[Marshall Davey]

Hello everyone, just wondering if the URLs linked in the tutorials will be updated? i'm having a very hard time finding any guidance on setting up a script to record/compile a RT feed. 
Thanks

On Tuesday, March 6, 2012 at 4:34:24 AM UTC-5, Brian Ferris wrote:

[Sean Barbeau]

Marshall,

Which URLs are you looking for that are broken?

There is a still a plan to post an updated version of these but it hasn't happened quite yet.

Sean

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[Sean Barbeau]

Also, note that there are a number of demo open-source apps and libraries here that may be useful:

https://github.com/CUTR-at-USF/awesome-transit#gtfs-realtime-libraries--demo-apps 

Sean 

[Marshall Davey]

HI Sean, thank you for the github link!

The dead urls i was referring to are the ones linked inside the tutorial pages. But it is ok, no further action is required because i have since figured out that they are just the regular developers.google.com pages that can be found via google.

just to be totally clear (and to help anyone else reading this) i was referring to one of the tutorials posted above, take this one for example: https://web.archive.org/web/20190319025904/https://plus.google.com/116552831948529744090/posts/9TuSp1GWQn8  

and then inside that page there is an additional link https://developers.google.com/transit/gtfs-realtime/trip-updates  which if you click inside the tutorial, it returns 404. 

If you instead copy/paste that link into a browser, it loads just fine. So everything is working fine right now :)

Thank you

On Wednesday, December 11, 2019 at 10:47:20 AM UTC-5, Sean Barbeau wrote:

Also, note that there are a number of demo open-source apps and libraries here that may be useful:

https://github.com/CUTR-at-USF/awesome-transit#gtfs-realtime-libraries--demo-apps 

Sean 

On Wed, Dec 11, 2019 at 10:46 AM Sean Barbeau <sjba...@gmail.com> wrote:

Marshall,

Which URLs are you looking for that are broken?

There is a still a plan to post an updated version of these but it hasn't happened quite yet.

Sean

On Tue, Dec 10, 2019 at 9:24 AM Marshall Davey <marsha...@gmail.com> wrote:

Hello everyone, just wondering if the URLs linked in the tutorials will be updated? i'm having a very hard time finding any guidance on setting up a script to record/compile a RT feed. 
Thanks

On Tuesday, March 6, 2012 at 4:34:24 AM UTC-5, Brian Ferris wrote:

Hey everybody,

I've been working on a series of tutorials around GTFS-realtime that I think you might find useful.  The tutorials cover a variety of aspects of working with GTFS-realtime data, for both agencies and developers.  There are five tutorials in total:

1) I give a brief intro to GTFS-realtime and show how to produce a GTFS-realtime alerts feed: http://goo.gl/zS7ti

2) I show how to produce GTFS-realtime trip update and vehicle position feeds: http://goo.gl/y1er7

3) I show how to consume a GTFS-realtime feed, with a simple visualization of vehicle positions: http://goo.gl/odBJP

4) I talk about GTFS-realtime's place in the API ecosystem and using GTFS-realtime to power OneBusAway: http://goo.gl/eTaag

5) I link to a number of other GTFS-realtime resources, including various adapters and plugins that work with the spec: http://goo.gl/onUpw

I hope these tutorials are helpful in your own work with real-time transit data.

Thanks,

Brian

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