Noise abatement is done for urban freeways all the time, without changing the trucks, cars, road surface, et cetera.
One of the reasons the Kennedy Expressway in downtown Chicago is zoned for skyscrapers on both sides is to block the traffic noise from getting into the rest of the area.
Dallas does the same thing with 75 and it's so wild because it seems like you're in an intensely urban area for miles, but really it's a wall of 10-15 story buildings surrounded by single family homes.
One of the reasons the Kennedy Expressway in downtown Chicago is zoned for skyscrapers on both sides is to block the traffic noise from getting into the rest of the area.