SCHEDULE

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Revision as of 19:15, 13 June 2013 by Jonathon Hurley (talk | contribs) (Moved association and schedule records to separate pages)
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The SCHEDULE feed is an extract of train schedules from Network Rail's ITPS (Integrated Train Planning System), converted in to JSON format. Network Rail are not planning to make raw CIF files available.

Schedules can either be downloaded for all TOCs, or for individual TOCs. Two types of schedule file are available - a 'full' file which contains a snapshot of all schedules at that point in time, and an 'update' file which can be applied to an older set of files to bring them up-to-date.

The CIF User Specification is available from ATOC's website, which details the format of the CIF file and the fields within, and should be read in conjunction with these wiki pages.

Downloading

The schedule data is compressed using gzip and is downloaded from Amazon S3 via a private URL which is valid for a few minutes after generation. Authentication will be required either by logging in through the datafeeds website, or by sending your username and password as part of the HTTP request. On successful authentication, you will receive a 403 redirect to the location of the schedule files. Requests are of the format:

 https://datafeeds.networkrail.co.uk/ntrod/CifFileAuthenticate?type=type&day=day

where type determines the TOCs contained in the schedule extract and whether the file is a full schedule or an update file, and day determines which day's update file is downloaded. For example:

 https://datafeeds.networkrail.co.uk/ntrod/CifFileAuthenticate?type=CIF_ALL_FULL_DAILY&day=toc-full

would download a full schedule file for all TOCs.

Values for type and day can be one of the following:

type day Description Example URL
CIF_ALL_FULL_DAILY toc-full Daily all-TOC snapshot Daily
CIF_ALL_UPDATE_DAILY toc-update-DAY Daily all-TOC update Mon, Tue, Wed, Thu, Fri, Sat, Sun,
CIF_XX_TOC_FULL_DAILY toc-full Daily snapshot for TOC XX Daily
CIF_XX_TOC_UPDATE_DAILY toc-update-DAY Daily update for TOC XX Mon, Tue, Wed, Thu, Fri, Sat, Sun

DAY should be replaced with the shortened version of the name of the previous day. For example, on Monday, Sunday's ('sun') update should be requested.

A list of TOC Codes is available. Note that the TOC code used in the URL is not the ATOC code as seen in schedule files, but the business code as used in Network Rail systems.


Downloading via curl

The schedule file can be downloaded from the command line using the curl utility (included with linux, versions available for other operating systems) with the following syntax:

 curl -L -u username:password -o file.gz 'https://datafeeds.networkrail.co.uk/ntrod/CifFileAuthenticate?type=CIF_ALL_FULL_DAILY&day=toc-full'

(Thanks to Jules for figuring this syntax out.)

File Format

Schedule data is contained in the schedule file in JSON format, with a single JSON record per line. The file can be parsed line-by-line to extract the data required. Each schedule file contains:

  • A header row
  • Zero or more association records
  • Zero or more schedule records
  • and an end-of-file (EOF) record.

Each association and schedule record has an action - either 'create' or 'delete'. These are used in update files to add or remove records from the master schedule. In full files, there will be no 'delete' records. Update files must be applied sequentially to a full file.

Record Types

Schedule data contains two types of records:

Validity

Associations and schedule validities are between a start date and an end date, and on particular days of the week. They each have a Short Term Planning (STP) indicator field as follows:

  • C - Planned cancellation: the schedule does not apply on this date, and the train will not run. Typically seen on public holidays when an alternate schedule applies, or on Christmas Day.
  • N - STP schedule: similar to a permanent schedule, but planned through the Short Term Planning process
  • O - Overlay schedule: an alteration to a permanent schedule
  • P - Permanent schedule: a schedule planned through the Long Term Planning process

For any date a permanent schedule ('P') is valid, it may be overridden by an overlay ('O') or a planned cancellation ('C'). However, if any two schedules appear to be valid for a particular day, the schedule with the lowest alphabetical STP indicator wins.

Scheduling Process

A description of the scheduling process is available on the how scheduling works page. This describes how multiple schedules can be used to describe a specific train service.


Network Rail Open Data Feeds
Data Feeds About the Feeds Account States Durable Subscriptions Example Code ( PHP / C# / Java / Ruby / Node.js) • Advanced UsesFAQ Release Notes
RTPPM RTPPM Feed
Train Movements Train Movements Feed Train Activation Train Cancellation Train Movement Train Reinstatement Change of Origin Change of Identity Change of Location TSPEED Field Planned Cancellations Cancellation Codes
TD TD Feed C-Class Messages S-Class Messages Train Describers TD Berths
VSTP VSTP Feed
TSR TSR Feed Route Codes
SCHEDULE SCHEDULE Feed Schedule and Location Records Association Records CIF Codes How Scheduling Works Allowances
Reference Data Reference Data Feed TOC Codes CIF Codes Delay Attribution Codes Identifying Locations (STANOX, TIPLOC, NLC and 3-Alpha Codes) STANOX Geographical Areas Train Planning data