Represent network edits

[dabreegster]

Ungap the Map, v2! Glue to the scheme sketcher, let people apply a proposed scheme, and see how it affects od2net output

[dabreegster]

CC @Robinlovelace and @stholder3.

The two use cases are editing existing roads in OSM to make them nicer, and adding totally new bridges/roads.

Doing something like "patching" an OSM file with GeoJSON input representing edits is not easy, I think. But if the only thing we're doing is feeding those edits to od2net, then it's a much easier problem potentially. The graph representation in od2net is easier to edit than OSM. So let's figure out what we want to do end-to-end, including input format of the edits, and then we could potentially start this work

[dabreegster]

More ideas from in-person conversation: the custom edge cost today could represent some edits. To do something like a 20mph zone, we could pass the edge geometry to that custom cost and then change LTS or costs accordingly