Passengers will be able to pay contactless at barriers ... London Underground, buses and trams." Jacqueline Starr, chief executive of Rail Delivery Group, said: "The way our customers buy tickets ...

for example touching-in and touching-out at a London Underground ticket barrier. It is a weakness in how Visa systems work with this feature, that researchers from the Computer Science departments ...

New plans, which have been put forward after ... as well as the "overcrowded" London Underground ticket hall to improving step-free access to all main line rail and Tube platforms.