Movable Lanes

I had no idea this existed. There’s a machine that changes the lane configuration of the Roosevelt Bridge based on the time of day and traffic flow. It literally moves the concrete barriers an entire lane width. Cool!
Washington Post’s Answer Man has a video of this behemoth at work. (via Carl)
(Oddly, the “Share” button is disabled, so I can’t snag the code to put the video here. What’s up with that Post?)

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