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# Network

The objectives of developing a network format for AequilibraE are to provide the users a seamless integration between network data and transportation modeling algorithms and to allow users to easily edit such networks in any GIS platform they’d like, while ensuring consistency between network components, namely links and nodes. As the network is composed by two tables, links and nodes, maintaining this consistency is not a trivial task.

As mentioned in other sections of this documentation, the links and a nodes layers are kept consistent with each other through the use of database triggers, and the network can therefore be edited in any GIS platform or programmatically in any fashion, as these triggers will ensure that the two layers are kept compatible with each other by either making other changes to the layers or preventing the changes.

We cannot stress enough how impactful this set of spatial triggers was to the transportation modeling practice, as this is the first time a transportation network can be edited without specialized software that requires the editing to be done inside such software.

Important

AequilibraE does not currently support turn penalties and/or bans. Their implementation requires a complete overahaul of the path-building code, so that is still a long-term goal, barred specific development efforts.

See also

- links table structure

    Data model

- nodes table structure

    Data model

Dive deep into network!

- Dealing with Geometries
- Importing and exporting the network