[PROPOSAL] Fully specifies the use of ADDED and un-deprecate REPLACEMENT schedule_relationship in real time updates

[Michael Tsang]

Dear all,

I now have a proposal to fully specify the use of ADDED and un-deprecate REPLACEMENT in the schedule relationship of a trip update, based on the OpenTripPlanner implementation.

In short, they allow specifying completely new trip patterns which are unrelated to the schedule in the GTFS static. ADDED requires a trip_id which do not exist in the GTFS static, while REPLACEMENT requires a TripDescriptor which matches an existing trip like the other values. In both cases, the whole journey must be specified end-to-end without referring to the GTFS static.

The full pull request can be read here: Specify the behaviour of TripUpdate.schedule_relationship = ADDED, and un-deprecate REPLACEMENT by miklcct · Pull Request #504 · google/transit .

We have already made a deployment in Great Britain in order to support real-time National Rail train times using OpenTripPlanner, located at https://test.open-trip-planner.jnction.co.uk/otp/ , and I will put it to a vote after 7 days.

Thanks,

Michael

[Bwami Rupin]

Hello,

Thank you for the efforts. But, I am looking for the scrip to know how I can run the trip speed with gtfs data. I tried several scripts without success. Can someone help me please ?

Thank you for your help 

Rupin BWAMI KAHOMBERA
Research and Teaching Assistant

Faculty of Economics and Management_UEA/BUKAVU

Advanced Master in Transport and Supply Chain Management

Ecole polytechnique de Bruxelles_ULB

PhD Student at the Faculty of Applied Sciences

Department of Urban and Environmental Engineering_ULiège

Tél.: +243 972300117; +243 859719949; +32 487459455

Autres courriels : rupin...@uea.ac.cd; Rupin...@ulb.ac.be; Rupin...@uliege.be

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[Bodo Minea]

Hi Rupin,

I don't think your question has to do with the current topic, specifically schedule_relationship: ADDED/REPLACEMENT. You could start a new topic or directly email me if you so desire and offer some more information about your inquiry:

What data exactly do you want to extract speed from? Derive ideal speed from a static GTFS schedule or monitor speed of vehicles from a GTFS-Realtime speed.

What have you tried and in which programming language do you need a solution? What scripts have you tried? Can you provide a source data sample?

Best regards,

Bogdan.

https://www.linkedin.com/in/mineabogdan

To view this discussion visit https://groups.google.com/d/msgid/gtfs-realtime/CAARBbJPEnAj4sMPx%2BO23_o8TpSeq%2B1ze60Z9CC-wYV9m%3D99WRA%40mail.gmail.com.

[Bwami Rupin]

Dear Sir/Madam, 

I am grateful for your response. I am working with GTFS STATIC data and am seeking to ascertain the speed based on distance and time using the R programming software. Despite attempting various methods, I have not yet achieved the desired results. Could you kindly advise on the best course of action? Would sharing my script be beneficial?

I am grateful for your assistance.

Rupin BWAMI KAHOMBERA
Research and Teaching Assistant

Faculty of Economics and Management_UEA/BUKAVU

Advanced Master in Transport and Supply Chain Management

Ecole polytechnique de Bruxelles_ULB

PhD Student at the Faculty of Applied Sciences

Department of Urban and Environmental Engineering_ULiège

Tél.: +243 972300117; +243 859719949; +32 487459455

Autres courriels : rupin...@uea.ac.cd; Rupin...@ulb.ac.be; Rupin...@uliege.be

To view this discussion visit https://groups.google.com/d/msgid/gtfs-realtime/CAFdgeY_Mu5SDetPdKYqyDTn13zKU58m5L1LhbvBEbHo8oU4z-g%40mail.gmail.com.

[Elias Gino Cripotos]

Hello Rupin, 

I am Elias, the GTFS Community Manager at MobilityData

Thank you for sharing your question here. Unfortunately this is the GTFS Realtime group and your question is unrelated to the topic above.

For Static / Schedule questions I advise that you post a message on either the GTFS Changes google group or on the GTFS Slack. The GTFS Slack is much more responsive with over 1000 transit and mobility experts that can share their thoughts. It is free to join. 

For other information on how to interact with the community, please consult this page on gtfs.org. 

Before posting please take time to read the community guidelines, it makes everyones experience more enjoyable. 

Thank you for your understanding and have good day,

Elias