Roads are made from asphalt and not concrete because asphalt is cheaper to install and maintain. The time needed to install asphalt is considerably less than concrete. Asphalt roads provide a safer driving surface with more grip as well.
Concrete Vs. Asphalt Roads — Which Is Better? – AtlantisFiber™
What are the pros and cons of using concrete instead of asphalt to build roads? - Quora
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Asphalt Road VS Concrete Road: Pros and Cons
Roads using recycled plastic built in Michigan
Why Use Concrete for Roads Instead of Asphalt? 510-723-0280
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Concrete pavement preservation makes Oklahoma's turnpikes smooth, safe, and affordable without reconstruction
Infrastructure - Page 2 of 3 - BuilderSpace