Boris Johnson is expected to reveal his plans to ban alcohol on London's transport network.

The new mayor, who took over the role from Ken Livingstone after beating him in last Thursday's election, will work with London's transport commissioner Peter Hendy to set out a timeline to implement the policy. Posters will be unveiled to inform commuters about the new measure.

The ban of drinking alcohol on the capital's transport system, which includes the Tube, trains, buses and Docklands Light Railway (DLR), was one of Mr Johnson's key election pledges.

It is part of his wider strategy to curb antisocial behaviour in London.