this post was submitted on 10 Oct 2024
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I think a diverging diamond interchange is actually a pretty elegant solution. That being said, I'd rather have public transport than better traffic infrastructure.
I've read descriptions of how they work numerous times and cannot wrap my head around how having traffic going opposite directions cross paths does anything helpful.
Great, you're now on the appropriate side to make the turn at the far side of the interchange, so the people making the turn don't have to cross traffic to do so, at the cost of every car that crosses the interchange now having to cross traffic twice.
What?
More people are turning than crossing.
Oh. I think I get it. You put the diverging diamond on the route with less traffic where most is expected to be exiting onto the main highway or whatever. You wouldn't put one at a place where two equally busy highways intersected.
That makes more sense.