Talk:2728: Lane Change Highway

There's a section of the M25 motorway around London which does this... Never did like it. 172.70.85.201 07:14, 24 January 2023 (UTC)

I hope you are kidding ;-) Although there are some funny histories about that road. For instance Good Omens by Neil Gaiman and Terry Pratchett. (Now a series - see Crowley Creates (and Destroys) The M25 - Good Omens. :-) --Kynde (talk) 08:25, 24 January 2023 (UTC)

A lot of highways in France do something similar. At every ascend, the ascending traffic gets its own new lane, presumably to keep ascending cars from doing merging manouevres. To keep the same number of lanes, the leftmost lane merges into the adjacent lane before the ascend. So if you simply stay on your lane, you kind of drift to the left with every ascend. I am not sure if this really helps to cut accidents, but I think it is a clever solution at least for some accident-prone ascends. 172.71.160.36 08:32, 24 January 2023 (UTC)

Saved the image to the wayback machine here https://web.archive.org/web/20230124073752/https://xkcd.com/ Mushrooms (talk) 07:41, 24 January 2023 (UTC)

Doesn't that happen automatically? I like they are there, but do webcrawlers not manage that on a dayli basis? --Kynde (talk) 08:17, 24 January 2023 (UTC)

Huh, didn't know that. Better safe than sorry! Mushrooms (talk) 08:33, 24 January 2023 (UTC)

It's really a very wide single-lane road. The left lanes originate from the edge of the road so no cars feed into them, and on the right side once you merge there is no where to go except to merge into the next right-hand side, so the net effect is that the road is 4 lanes wide, but is functioning as a single-lane road. That assumes everyone is entering from the right side. But I guess they could be entering from the left but still in a very short time all cars are on the right. Rtanenbaum (talk) 12:24, 24 January 2023 (UTC)