This is your Mayor calling
The Mayoral messages can be heard at various Tube hotspot stations, as well as at bus, Docklands Light Railway, London Overground, tram, and mainline railway stations in the lead-up to the Games.
A typical announcement says: 'Hi folks. This is the Mayor here. This is the greatest moment in the life of London for 50 years. We're welcoming more than a million people a day to our city and there is going to be huge pressure on the transport network.
'Don't get caught out. Get online and plan your journey at GetAheadoftheGames.com'