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Just one more lane (sh.itjust.works)

submitted 6 months ago by [email protected] to c/[email protected]

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[–] [email protected] 12 points 6 months ago (1 children)

There are other reasons.

Adding, say, a sixth lane doesn't increase capacity as much as adding a 2nd lane, because traffic jams are generally because of interactions. It's very rarely the straight road that has a capacity problem. Adding a sixth lane adds capacity, but also creates more interactions.

Also, car lanes have a shit capacity, which goes down massively when it's busy. Like you said, mass transit is vastly superior, but even a dedicated bus lane would help. In contested traffic, a car lane transports less than a single bus per hour.

[–] [email protected] 1 points 6 months ago

Yeah, the interactions suck. But if dealt with earlier, they could have been mitigated. Same way mass transit does. Express trains. Have a highway over a highway that goes to a specific place. If you stack enough of those, people get on the one they need and go straight to where they need to get. Not realistic though unless planned in advance.