I lived in a city that was doing a lot of lane count reduction, installation of traffic circles, etc. Results were… mixed. It definitely was achieving “aesthetic improvement” with more trees and green features along what used to be bare asphalt and concrete corridors - sometimes the traffic did “flow better” on the lane count reduced roads, but I think a lot of that was attributable to significant volume diverting to alternate routes. Then they had their “disaster area” situations that only got worse no matter what they did - overdevelopment underserved is a formidable problem.
I lived in a city that was doing a lot of lane count reduction, installation of traffic circles, etc. Results were… mixed. It definitely was achieving “aesthetic improvement” with more trees and green features along what used to be bare asphalt and concrete corridors - sometimes the traffic did “flow better” on the lane count reduced roads, but I think a lot of that was attributable to significant volume diverting to alternate routes. Then they had their “disaster area” situations that only got worse no matter what they did - overdevelopment underserved is a formidable problem.