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Re:The Zipper Rule on German Roads by cameronh90 on Tuesday February 05, 2019 @08:02AM (#19084872)
" I often see (and do it myself) that someone has let a person in who is trying to pull out of a hard-to-leave business driveway, with no hope of reward"

You're not supposed to do that here (UK) except if you're already in slow moving traffic. You will fail your driving test for doing it. Not only that, but it's overall inefficient and causes traffic jams to form behind you if you slow down.

Like with people who hate zipper merging, sometimes what seems 'polite' isn't what's best for traffic.

Re:The Zipper Rule on German Roads by oneeyedpigeon on Tuesday February 05, 2019 @09:22AM (#19085489)
I sometimes do sort-of-the-opposite which is, if I spot someone trying to join the road, and there's plenty of room ahead and behind me, I'll speed up ever-so-slightly to give them more chance of getting on. It's not often, and it's nuanced, but I like to think it's an efficiency positive!
Re:The Zipper Rule on German Roads by playworker on Tuesday February 05, 2019 @09:21AM (#19085476)
...or best for safety.

I've had a car written off and had a very minor pedal bike crash due to people "being polite" and gesturing people out of side-roads when not safe to do so.

Re:The Zipper Rule on German Roads by jimhefferon on Tuesday February 05, 2019 @08:19AM (#19084992)
I meant in slow, or waiting, traffic.