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Internal Service Overview

There are quite a lot of services required to acquire and preset the public transport data. The figure below shows the current services and which data in what format flows between them. Clicking on different text boxes will open their GitHub repository or documentation.
One of the key concepts is to abstract away from acquired real world data and create value with this data by presenting it in an enriched and simplified form. This is done by the application chemo.
Chemo combines R09 Telegrams from data-accumulator and GPS data from trekkie into a unified format that contains Line, Run and GPS location and optional data.
This is served to the user via funnel in real-time and lizard, showing the state of the traffic network.
Individual API docs can be found here:
Last modified 3mo ago