When traffic jams completely in Germany, Drivers (by law)
must move towards the edge of each side of the road to
create an open lane for emergency vehicles.

This is actually how Germans make room for emergency vehicles when there's a pileup on the highway: Drivers split down the middle to both sides to create an open lane in the middle of the road to let emergency vehicles through.
You form the lane anytime traffic comes to an absolute
crawl or a complete standstill, splitting down the middle
rather than hoping that there’s room on an emergency
lane to the right or left.
This is all call a Rettungsgasse, rescue lane in English, and it's not nearly as old or established as you'd think. It only hit the books in 1971 in what was then West Germany, and it only said that drivers had to make way for emergency vehicles generally. In 1992, then-unified Germany declared that drivers had to make a middle lane free, which was then clarified again in 2016 to make it clear exactly how drivers should split up...

Mynd44
Seun
lalasticlala

Go and tell danfo drivers in Lagos

You dare to create an amazing open space like this on the busy eko bridge, ...hahaha Lagos is a very funny place

Lagos faragon drivers will still scatter everything