|Source: Cyclists in the City|
Control of the bridge is shared between Lambeth and Westminster. The Southern side of the bridge is administered by Lambeth and has double yellow lines banning parking.
The Northern half of the bridge is administered by Westminster and currently has a single yellow line (see photo showing the middle of bridge where control changes from Lambeth to Westminster) meaning that cars can park on the bridge at weekends and in the evening. It is common at these times to see a line of cars parked on the bridge, meaning that cyclists cannot use the cycle lane.
Now Westminster is proposing a ban on parking on its side of the bridge to comply with TfL's Quietway requirements. A consultation on the Westminster proposals ends on 16 October 2015.
Lambeth Council Leader Lib Peck committed the Council to ensuring 24 hour parking restrictions on Waterloo Bridge in January 2014