Compass custom extension#75
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dan-mccabe merged 7 commits intomainfrom Mar 5, 2026
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Mar 5, 2026
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This PR starts to build out custom traversal models for RouteE Compass to be used exclusively in RouteE Transit. To do that, we build a rust extension that has a new traversal model called TransitEnergyModel that performs energy estimation for transit busses specifically. This is based on the energy models in base compass but go a step further by adding a stopping penalty which is just computed as the kinetic energy required to go from a stop back up to the link average speed. This additional stop energy is mostly meant to be demonstrative and we should scrutinize that exact approach a bit more but hopefully this elucidates how one might go about building even more compass extensions that are specific to transit busses.
I know this might be a lot to take in and so feel free to schedule some time to chat if you want to.