.. _transit_supply_data_model: SQL Data model ^^^^^^^^^^^^^^ The data model presented in this section pertains only to the structure of AequilibraE's public_transport database and general information about the usefulness of specific fields, especially on the interdependency between tables. Conventions ''''''''''' A few conventions have been adopted in the definition of the data model and some are listed below: - Geometry field is always called **geometry** - Projection is 4326 (WGS84) - Tables are all in all lower case .. Do not touch below this line unless you know EXACTLY what you are doing. .. it will be automatically populated Project tables '''''''''''''' .. toctree:: :maxdepth: 1 agencies.rst fare_attributes.rst fare_rules.rst fare_zones.rst pattern_mapping.rst route_links.rst routes.rst stop_connectors.rst stops.rst trips.rst trips_schedule.rst