The proposed improvements to the roundabout at the northern end of Lambeth Bridge have some merit. Placing the existing zebra crossings onto raised tables, to reduce speeds and improve priority, is sensible, as is the decision to replace the side hatchings with an extension of the footway, which represents a partial tightening of the geometry of the roundabout.
The improvements also include an implicit recognition that the roundabout is unattractive for many current and potential cyclists.