The root cause is speed differential between traffic elements or groups thereof....

throwaway0a5e on March 10, 2022 | parent | context | favorite | on: Toll signs on 101 report your transponder setting

The root cause is speed differential between traffic elements or groups thereof. You can either bring the upper bound down with draconian enforcement or you can bring the lower bound up, mostly by raising the statutory speed limit. The latter is far more popular.

lotsofpulp on March 10, 2022 [–]

Acceleration differential is also a cause, which cannot be fixed.