London Underground

Why plan? 

Increases or changes to passenger demand from new developments can affect the LU network. The impact could be on service capacity, station or gateline capacity, or infrastructure. It is essential that the impact of the proposed development is accurately assessed within the transport assessment (TA) to ensure that services are protected and where necessary adequate mitigation is secured.

Requirements for your planning application

The TA should include the following baseline inputs:

  • LU lines serving the stations
  • Service frequencies
  • Train capacity
  • Station capacity including entrances, gatelines, platforms, stairways and internal circulation
  • Station locations, walk distances and facilities provided including cycle parking
  • Condition and location of bus interchange facilities
  • Facilities for people with reduced mobility
  • Planned service alterations/improvements

The TA should provide LU trip generation figures by time and by direction, with the peak hour indicated separately. 

Assessing London Underground train service capacity

To assess capacity on LU trains, the line loadings need to be analysed. RODS (Rolling Origin and Destination Survey) data is collected by LU to model the levels of passengers on different sections of line. This can be obtained from LU by contacting LU Passenger Demand Queries. The data can be used to assess the impact of any additional trips generated.

Assessing London Underground station capacity

The capacity levels of LU services should be based on a measure of the number of passengers standing in one square metre of the train's available floor space. LU guidelines indicate that using the maximum observed standing capacity of four passengers per square metre should be the requirement although five passengers per square metre can be used as a sensitivity test. The actual figures will alter for the relevant rolling stock affected.

The impact on station congestion can be assessed by using the [LUL Station Planning Standard (1-371)] (2009). In most circumstances, it should be sufficient for an applicant to test the impact by undertaking static calculations using the formulas in the standard. Not every part of a station may need to be assessed. The requirement and scope for such tests should be agreed with TfL at pre-application stage. On occasion, for large scale, high trip generating developments, it may be necessary to assess the impact on station capacity in more detail. LU uses two dynamic modelling systems (Pedroute and Legion) to analyse the performance of its stations and the impacts of increased demand and proposed capacity/operational enhancements.

One of these tools should be used for larger developments that are projected to have significant impacts on station operations. Where development proposals may warrant dynamic modelling, the approach should be agreed with LU as part of the TfL pre-application process.

Construction advice

Where development or construction is proposed at or near LU infrastructure, LU Infrastructure Protection should be consulted. Please note that TfL Borough Planning will consult LU Infrastructure Protection when it is consulted on an application by the GLA or local planning authority.

This may require a separate agreement with TfL/LU in order to allow development to be implemented if there is an infrastructure safeguarding issue that needs to be addressed.

Where a proposal impacts on the London Underground network and alterations particularly to station capacity or gatelines are required, appropriate mitigation, usually an agreed developer contribution to off-set the cost of the necessary works will be expected. This will normally be secured through the section 106 agreement.

 

 

 

 

 

 

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