It does seem to be "the route as you'd show on a map" - if I plot the two sets points on GPSVisualizer, it's fairly different. https://imgur.com/a/BUSW3C2 http

It does seem to be "the route as you'd show on a map" - if I plot the two sets points on GPSVisualizer, it's fairly different. https://imgur.com/a/BUSW3C2 https://imgur.com/a/BUSW3C2 I guess the 389/631 routes are reasonably simple and don't need more "drawing points" than you'd get from the bus stops anyway? [edit: added the 389 bus stops and line points to the imgur gallery]