Traffic visibility on map

When driving, I find the live traffic line unable to be seen due to the direction line. Only when the map zooms in closely (when in traffic) does it become visible. I attempted to change the direction line to dashed in settings, but it did not affect the direction line on the map.

No source files, tests, or entry points are named. Start by reproducing the map view while driving and compare the live traffic line with the direction line, including the dashed-line setting; done means the traffic remains visible at normal driving zoom and the direction-line setting affects the displayed direction line.

Written by the indexing model from the issue text.