Construction as destruction

JUST musing now that I see all the construction going on every which way and virtually everywhere in this country, whether their end results will be a better quality of life. Or, will they lead to unintended consequences that will turn out less than ideal, maybe negative or worse, untenable and irremediable?

What is with all the money being spent on road works, not new roads, that may be counted as part of the massive spending. Perfectly usable and adequate roads are being torn up to re-make them exactly as they were using the same materials, the same way of construction and in no way improving traffic flow, drainage, comfort. For example, why not put an asphalt overlay on cement roads that are there and have a better ride and less wear and tear on vehicles? That would be an improvement, not the same old concrete with its rough ride.