system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why is there CONSTANT road construction in most US cities? Are there not any long-lasting solutions?
gpt
The road industry has two seasons: plowing snow and repairing roads.  Freeways are very long lasting solutions, and they only require repaving every 30-40 years.  However, that means repaving 3% of the road every year, plus any new lanes that are added.

City streets and non-Interstate highways are not s long lived because they face another problem, right of way access.  For convenience and protection, many localities put power and communications underground with water, gas, and sewer.  If any of those 5 utilities need more capacity or infrastructure replacement, the road must be cut up.  It doesn't pay to have a road that lasts so long that all 5 utilities get to dig it up, so repaving is more frequent.