An odd practice on Poliand's 2-lane highways is an added half-lane on either side which forces drivers to drive with two wheels on the verge to let speeders by.
Nothing new. It's been done in other countries for years, particularly Ireland.
Anyway, no-one is "forced" - it's just polite to move over if someone wishes to overtake, in order to make it easier for them. However, many people don't do it.
Used to be that a driver drove along at his own speed and it was up to the speeder who regarded it as too slow to overtake on the left if he felt so inclined. When was this practice of rural zigzag driving introduced?