[fizz_and_buzz]

This is definitely untrue. There were a bunch of studies in Germany that concluded the opposite, which is why the laws were changed here. It is now often illegal to change lanes e.g. the last 300m before the merge point. There are several reasons:

- The traffic jam is longer because less road is used and the traffic jam often reaches so far back into intersections that other roads get blocked that are unrelated to the actual blocked lane.

- Several merge points slow down the traffic more often which create several waves of breaking and accelerating, instead of just one breaking instance.