 That October, Wandsworth Council proposed a revised plan called Airtrack-Lite, which would provide trains from Waterloo to Heathrow, via the same proposed spur from Staines to Heathrow, but, by diverting or splitting current services, the frequency of trains over the existing level crossings would not increase.BAA's earlier plan had controversially proposed more trains over the level crossings, leading to concerns that they would be closed to motorists and pedestrians for too long.Crossrail 3, backed by former London Mayors Ken Livingstone and Boris Johnson would include a underground section in new tunnels connecting and Waterloo, connecting the West Coast main line corridor with services to the south.