Westminster Bridge South proposals - Frequently Asked Questions

Closed 22 Dec 2015

Opened 10 Nov 2015


What would be the impact on traffic congestion as a result of the proposed changes?

Our proposals will mean changes to journey times for traffic. In the main these changes would not be significant, with some bus and road journeys getting shorter and some getting longer.

Our proposed design includes changing the traffic signal timings in the local area to ensure delays are kept to a minimum and to improve journey times where possible. We are investing in advanced traffic signal technology to allow us to better manage traffic in London depending on differing conditions at any given time. There would also be customer information to enable road users to make informed journey choices and campaigns to encourage road users to check before they travel.

More information on the effect of our proposals on journey times can be found here.

Why is there a delay for cyclists travelling from Westminster Bridge Road west to Westminster Bridge Road east?

The proposals include dedicated traffic signals for cyclists to separate them from other traffic. In some situations this would mean that cyclists would have to wait at a red signal while traffic receives a green signal, particularly at junctions with complex layouts such as the junction of Westminster Bridge Road and Addington Street. The extra delay for the Westminster Bridge Road west to Westminster Bridge Road east movement is necessary to provide separation from traffic; cyclists would benefit from being able to move through the junction separately to other traffic.

Will separate traffic signals cause confusion between road users?

The traffic signals for cyclists would be located on separate islands to those for motorists; these would be smaller and at a lower height to distinguish from vehicle signals. The increase in the number of signals is necessary to safely separate cyclist and vehicle movements. The signals would be the same as those recently introduced at Queens Circus, Oval Triangle and the East-West and North-South Cycle Superhighways.

Are the bus stop islands large enough to accommodate passenger demand?

Space for the bus stop islands would be taken almost entirely from the carriageway rather than the footway resulting in an overall increase in footway space. The size of the islands has been maximised to ensure that they are large enough to safely and comfortably accommodate passengers and wheelchair ramps. The islands will be the same layout as those introduced on recent schemes including Cycle Superhighway Route 2 and Oval Triangle.

Will coloured surfacing be used on the road?

We would only use coloured surfacing for safety reasons where there is a need to alert motorists to the presence of cyclists; for example, where traffic could turn left across cyclists’ path. The map provided shows coloured surfacing for illustrative purposes only, to highlight the presence of cycle and bus lanes.

What impact will the proposals have on traffic flows elsewhere on the road network?

Our proposals would result in some general traffic journey times increasing so some vehicles would be expected to find alternative routes. TfL’s traffic modelling predicts that this effect would be negligible and neighbouring roads would not be expected to experience significantly increased volumes of general traffic.


  • Lambeth


  • Public
  • Stakeholders
  • Local residents
  • Local businesses
  • Schools
  • London Boroughs
  • Coach Operators
  • Taxi trade
  • Transport for London
  • Taxi customers and other stakeholders


  • Cycling
  • Junction Improvements
  • Roads