Two proposals from private organisations to improve rail connectivity to Heathrow Airport have been rejected by the Department for Transport following its call market led proposals earlier this year.
Windsor Link Rail, which would have connected Heathrow to the railway lines serving Windsor, with a new link connecting the two railway stations serving the town.
The leader of the local council has expressed concerns about the credibility of the proposal.
HS4Air, which would have connected Heathrow and Gatwick Airports to HS1 and HS2, creating an M25 for rail.