Date: 08/03/2018

Expedition, a London-based engineering consultancy firm, have revealed their proposal for a new high-speed railway called HS4Air (High-Speed for Air). The new railway would connect the existing HS1 with the planned HS2, linking both Gatwick and Heathrow airports. Also included would be a connection to the Great Western Main Line railway (GWML).

External links

HS4Air: A new railway proposal revealed for South East England

Global Railway Review

A new railway route, HS4Air, has been proposed by London firm Expedition, creating a high-speed railway version of the M25, connecting both Gatwick and Heathrow airports