overhaul the rat-run mode: tighten up things counting as shortcuts, keep the same path after adding a filter change the LTN route planning tool to be map-wide, not per-neighborhood place filters at non 4-way intersections shrink some cases of overlapping roads, improving geometry when OSM data is not great a first round of simplifying LTN panels when the LTN blockfinding would've crashed previously, just fallback to using more expensive blockfinding bugfix: detect existing filters on really short roads fix initial camera placement outside of the main A/B Street app