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Welcome to the aequilibrae wiki! In the following, we list improvements and features we'd like to incorporate in the software, but which are not a current priority of the core developer team. Some of these would make for good student projects; one of the best ways to understand a problem or an algorithm is to actually implement and use it, and by doing it in an open source project other people will benefit from it as well, a true win-win situation.

The idea of this wiki is to keep ideas here until the stage where they can be turned into issues to discuss concrete implementation steps. The core developer team is always happy to discuss ideas and algorithms, and to give pointers and directions.

Assignment cost function

Currently, only travel time is supported for equilibrium assignments. Adding other link costs, like tolls, would make the assignment more generic. Note that the form of the cost function for multi-class assignment for the currently implemented methods is rather restrictive, see e.g. https://doi.org/10.1177/0361198119837496

turn penalties in shortest path

select link analysis

frequency based transit assignment

We are not aware of any open-source implementations here, but do we really want to open that can of worms? Optimal strategies is relatively straight forward, but this requires a lot of infrastructure and data structures to be implemented.