…So London is getting some things exactly right, and other things a bit wrong, while Leicester is getting some things exactly right, and other things a bit wrong.
I suspect a large of the difference here probably flows from the starting premise. London is quite explicitly building roads for cycling, something that is obviously carriageway, designed and built like you would build roads for motor traffic. That’s good for junction design, less good for details like kerbs. Meanwhile Leicester appears to be building what amount to enhanced footways; cycling accommodated on the pavement, but in a well-designed and visually-distinct way. Until, that is, you encounter a junction, where that cycleway reveals its true colours as a bit of footway