Question to the Department for Transport:

To ask the Secretary of State for Transport, what (a) surveys, (b) modelling or (c) other methods his Department used to calculate the distribution across London transport zones of High Speed 2 passengers; and whether figures used for such calculations were of mainline or other passengers.

The distribution of existing rail demand across the Greater London area has two steps. The first step spreads the demand across London into 7 high level zones in the PLANET framework model on the basis of National Rail Travel Survey (NRTS) data and ticket sales data. The second step to disaggregate the demand from these high level zones into 1211 smaller zones uses demand distributions from Transport for London’s detailed RAILPLAN model.