Why do we still use concrete and asphalt for our roadways? Why have we not found a better material that is less prone to potholes and always feels smooth to drive on?
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We definitely have better materials, but are they cheaper? Probably not. We are fairly short-sighted politically, so a road that lasts 100 yrs vs. 30 yrs but costs double won’t be seen as worth it for most taxpayers
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