Bus lines have segments missing paths

[chosak]

When buses travel on freeways, they cut diagonally instead of following the freeway paths.

For now: Try to identify these suspicious paths (where points are more widely spaced than some threshold), and show them as lighter dotted segments.
Future: Use other strategies to clean up WMATA data, use WMATA API, or other approach

[chosak]

TNM now includes the ability to import ESRI shapefiles and use them to patch GTFS shapes, via the manage.py gtfspatch command. Unfortunately, there's no easy way to get shapefiles and the patch tool isn't really advanced enough to be able to easily correct only some portions of specific routes. So leaving this issue open, and agree that the "for now" strategy described above of using lighter dotted segments makes the most sense.

By the way, WMATA GTFS update of 1/26/12 still includes wrong 3Y.