London’s Embankment from Westminster to Blackfriars (and the rest of CS3 on other roads) added a bike lane by removing car capacity despite it being full every rush hour. The road as a whole has higher throughput now.
Oh, I recently rode through there the other day for the first time as I went from East London to Hyde Park! It was really nice to have a dedicated cycle way like that.
https://www.alamy.com/stock-photo-cycle-lane-superhighway-em...