Question to the Department for Transport:

To ask His Majesty's Government whether they expect Heathrow Airport (1) to model the impact of expansion on road traffic, (2) to reset mode share targets, and (3) to confirm that road traffic will not increase as a result of any expansion proposals, in line with commitments set out in the Department for Transport document Heathrow Northwest Runway: Connectivity published in 2016.

Any promoter of expansion at Heathrow will need to model the impact of expansion on roads around the airport as part of their Development Consent Order application. National Highways will also be consulted as part of this process.

Mode share targets and road traffic mitigations will also be considered as part of the Airports National Policy Statement review. This will be published for consultation by summer 2026.