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I was wondering the same thing recently. In Austria and some countries around a pretty popular road replacement system is called "fly over"[1] which has nothin

I was wondering the same thing recently. In Austria and some countries around a pretty popular road replacement system is called "fly over"[1] which has nothing to do with an overpass in the US, but is basically a small bridge put on top of a highway to repair the road surface underneath without interrupting traffic. It was mislinked on Wikipedia to overpass and while trying to figure out what it should link to I learned that this concept just does not really exist in other countries. [1]: https://www.waagnerbiro-bridgesystems.com/references/fly-over-ramp https://www.waagnerbiro-bridgesystems.com/references/fly-ove...

rootusrootus 4y ago
That's just a way to get traffic off the surface while work is done, though. The dowel bar retrofit is the work itself being done. I imagine a flyover ramp is more appealing in areas where there isn't a lot of alternate routes available. The US is considerably less dense than Europe so rerouting traffic while a section is closed for major work isn't a big deal. If it's going to last a while, we just pave over a section around the part being worked on.