Nine Elms Lane and Battersea Park Road – summary of predicted journey time impacts for road users

Closed 20 Aug 2017

Opened 4 Jul 2017

Overview

This note explains the impacts we expect our proposals to have on journey times and is accompanied by a more detailed table of data. This table shows the predicted changes to journey times calculated from our traffic models, assuming the levels of traffic reassignment predicted materialise.

Click here for the Nine Elms traffic modelling data (PDF)

TfL has used traffic modelling techniques to calculate the expected journey time changes through the area at the busiest hour in both the morning and evening peak. This table of data outlines the expected journey time impacts for general traffic, buses and cyclists.

We expect the proposals would result in changes, both positive and negative, to journey times for motorists, bus passengers and cyclists once complete.

Buses
Traffic modelling has been undertaken for the bus routes which travel through the scheme area to understand the potential impact of the scheme on bus journeys. The journey time impacts below relate to the section of the bus journeys through the modelled scheme area only and not to the whole bus route.

Bus journey times for the routes along Nine Elms Lane are generally expected to increase in both peaks. This is mainly due to the reduction in bus lane and an increase in the number of traffic signals the buses would have to pass through. The most notable changes to journey times are summarised as follows:

Route 44

  • Northbound journey times would decrease  by up to 1 minute during the morning and evening peaks from Battersea Medical Centre to Battersea Park Station on Queenstown Road

Route 156

  • Eastbound journey times from Battersea Park Station to Wandsworth Road would increase by 2-3 minutes during the morning and evening peaks
  • Westbound journey times would increase by 2-3 minutes during the morning peak and 1-2 minutes during the evening peak

Route 344

  • Eastbound journey times from Battersea Medical Centre to Wandsworth Road would increase by 1-2 minutes during the morning peak and by up to 1 minute during the evening peak
  • Westbound journey times would increase by 3-4 minutes during the morning peak and 1-2 minutes during the evening peak

General Traffic
We anticipate some changes to journey times through the scheme area.  Traffic flow reassignment, adjustment of available green time at traffic signals, and changes to the road layout have impacted journey times throughout this section of the road network.

The junction of Queenstown Road and Battersea Park Road is one of the key parts of the network. Improved facilities for cyclists and pedestrians at this location would lead to an increase in journey time for traffic travelling through this intersection.

The traffic modelling analysis predicts journey times for the busiest hours of the peak periods in the morning and evening peaks. The most notable changes to journey times are summarised as follows:

  • Northbound journey times on Queenstown Road would increase by 6-7 minutes in the morning peak, and by 8-9 minutes in the evening peak. 
  • Westbound journey times along Battersea Park Road wouldincrease by 2-3 minutes in both morning and evening peaks

Cyclists
The proposals would improve facilities for cyclists, providing new segregated cycle tracks and specialised traffic signals. However journey times for cyclists would increase through the scheme area due to the new traffic signals.

  • In general, cycle journey times would increase by around 2-3 minutes in the morning and evening peaks
  • Eastbound journey times from Battersea Park Road to Nine Elms Lane would increase by 3-4 minutes during the evening peak
  • Westbound journey times between Nine Elms Lane and Queenstown Road (North) would also increase by 3-4 minutes during the evening peak

Pedestrians
The proposals would improve facilities for pedestrians, providing new signalised crossings and some footway widening. Existing facilities would be maintained, and we would install new signalised crossings at Savona Street (to provide access to the new London Underground Station at Battersea), Kirtling Street, Cringle Street, and adjacent to Riverside Court. For the majority of signalised crossings there would be no change to the pedestrian wait time. However in some locations the wait may have to increase. 

Traffic reassignment
It is important to note that our traffic reassignment modelling is only ever indicative. It is intended to give an idea of where the impacts of changes in journey choice are most likely to be felt. Our traffic modelling assumes that drivers have perfect knowledge of the network and will always choose the quickest route available. The reassignment is a picture of what the network may look like once the on-street proposals and associated driver behaviour has had a chance to bed in.

We would actively monitor and manage traffic conditions on the roads following the delivery of the scheme, and would aim to mitigate and manage traffic reassignment following implementation.

Incorporating other transformational schemes in the wider network and their associated signal strategies as well as this scheme’s proposed layout changes, our modelling indicates a reduction in future flow through the local network in the morning peak. The traffic travelling along Nine Elms Lane reassigns to the wider area network as a result of the changes.

Complementary measures
The impacts presented by the traffic modelling do not take account of a range of additional complementary measures that would have beneficial impacts on journey times for buses and general traffic:

  • Where there are negative impacts on journey times for bus routes shown in the table, a programme of work is being investigated to save time elsewhere along the affected routes by addressing delays and giving priority to buses at certain pinch-points
  • We will invest in more advanced traffic signal technology and will use the signals to more effectively regulate the flow of traffic at certain locations to keep London moving
  • We are working to improve road user information so people can make informed journey choices before they travel

Areas

  • Lambeth
  • Wandsworth

Audiences

  • Anyone from any background

Interests

  • Bus route 137
  • Bus route 142
  • Bus route 156
  • Bus route 344
  • Bus route 436
  • Bus route 44
  • Bus route N44
  • Bus route P5
  • Cycling
  • Junction Improvements
  • Policy