Erase a street’s bike lanes to fix traffic, and watch every cyclist become one more car.
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About
Some people are sure that traffic would flow if the bike lanes were gone. One More Lane lets you test that idea on a busy city street.
Click or tap a stretch of bike lane between two intersections to erase it. There’s no undo. Cyclists who lose their lane don’t vanish: each one gets into a car. Drivers happily take over the erased lane, merge badly where it ends, and park in it “just for a minute.” Above the cars, drivers explain their thinking: “One more lane will fix this traffic.” “I love paying for gas.”
The counters at the top track cars, bikes, cars stuck waiting off-screen, and the average trip time compared to before you started. Remove every lane and see how fast traffic gets.
The game is generous to cars. Each cyclist becomes exactly one car and no more. On real streets, extra road space also attracts brand-new car trips to fill it, which is called induced demand. That isn’t modelled here, so real results would be worse. For the research, see Duranton and Turner, The Fundamental Law of Road Congestion (American Economic Review, 2011).
Created: October, 2026
Last updated: October 19, 2026