Question to the Department for Transport:

To ask the Secretary of State for Transport, what formula his Department used to calculate the likely distribution of use between Euston and Old Oak Common of passengers from each London transport zone; and how his Department determined the inputs for that formula.

The distribution of passengers between Euston and Old Oak Common is forecast using the PLANET framework model. This model takes into account the time taken to access stations from passengers’ start locations, the possible route options from starting stations to destination stations, the time to get to final destinations and the level of crowding on trains. Based on this information, the model predicts passengers’ choices on the best starting locations for their journeys. In turn this drives the distribution of passengers between any station options in any area, in this case Euston and Old Oak Common. Full details of the PLANET framework model and how it works can be found on our website at:

https://www.gov.uk/government/publications/planet-framework-model-pfm-v43-model-description.