The Catford Loop Line is a railway line in southeast London. It carries a suburban stopping passenger service from central London to Sevenoaks, and is also a relief route for the Chatham Main Line carrying passenger trains from London Victoria to the Kent coast. There is also much freight activity as this is the main route to Willesden and the north via Latchmere Junction. Freight traffic includes aggregates trains to and from locations along the Thames estuary, and Kent, aviation fuel running between Colnbrook (for Heathrow) and the Isle of Grain, and a small number of international workings from the Channel Tunnel via the yard at Dollands Moor. Until around 2013, a significant quantity of intermodal traffic from Thamesport used the line - however, the opening of London Gateway meant that