• BallShapedMan@lemmy.world
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    3 months ago

    Traffic (the book) says most Americans merge into traffic wrong when lanes reduce (from say 3 lanes to 2 lanes for example.)

    The right way is waiting until you are at the very end of the lane that’s reducing. When that happens up to 60% more cars per hour get through the bottle neck in heavy traffic and accidents resulting in killed or serious injury are reduced by up to 80%.

    Bottom line having multiple entry points in a queue with multiple slow down points due to the multiple entry points is the cause of the reduced performance with the way most Americans do it.

    • toomanypancakes@lemmy.world
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      3 months ago

      But, if I merge as soon as there’s space for me I don’t have to stress and panic about not having room to get into the other lane or keep driving forward. What do you do if you get to the end of the lane and people aren’t letting you in?

    • callouscomic@lemm.ee
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      3 months ago

      And you tell other Americans this and they think you’re rude. “No, you need to merge as soon as you can, that’s rude to drive all the way to the end!”

      • NewNewAccount@lemmy.world
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        3 months ago

        If traffic is free flowing and an opportunity presents itself then it’s still better to merge earlier.

        • callouscomic@lemm.ee
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          3 months ago
          1. That’s not the discussion.
          2. Why/How is it better? If traffic is flowing and there is space to be literally NOT disruptive to flow, then it doesn’t make a difference where you merge.

          I’ll bet though that when you merge, it is actually slightly disrupting flow as the person behind backs off, and then everyone else slightly adjusts. Now multiply this by more cars merging wherever they damn well feel like? If traffic is flowing and enough gaps exist so nobody has to adjust at all, then the merging literally doesn’t matter and it’s not the same argument.

          • NewNewAccount@lemmy.world
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            3 months ago

            Because as the lane is ending, the entire distance from wherever you are to wherever the lane ends is an opportunity to merge without disturbing other traffic. When the lane ends, that moment is now forced, leading to a higher likelihood of the driver(s) behind having to brake more abruptly and/or to an even lower speed.

            • callouscomic@lemm.ee
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              3 months ago

              Both drivers knew the merge end was coming. Unless they’re morons. People are morons. That’s why this is an argument.

    • Today@lemmy.world
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      3 months ago

      The people who drive up the shoulder around everyone and then cut in past the end are the real problem.

      • BallShapedMan@lemmy.world
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        3 months ago

        I mean they aren’t increasing the KSI rate, so I disagree with that position. They may be assholes, or maybe they have a loved one dying in the hospital and are trying to get there before they die?

      • BallShapedMan@lemmy.world
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        3 months ago

        I read this wrong… Let me see if I can find one.

        This gives you an idea. Nothing special about the lane, it’s like a lane anywhere else. We just overall merge early and at random distances causing chaos.

    • corsicanguppy@lemmy.ca
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      3 months ago

      Does the book mention that the Zipper merge is inherently flawed as it relies on drivers to be far more cooperative than they are?

      Yeah. So, like communism, the entire theory breaks down when humans are actually involved.

      • Hazzia@discuss.tchncs.de
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        3 months ago

        I’ve never been myself, but I heard that in some european country (Germany, I think) zipper merging is SUPER fluid because everybody’s on the same page. Which makes me think the issue is less about humans and more about americans, specifically