"One of the undoubted highlights of the summer was the fantastic community spirited, magenta and pink clad Ambassadors, who gave up their time to welcome the world. I am delighted that we have delivered on our promise to build on the remarkable success of the volunteers during the Games with the expansion of the Ambassadors Programme.
"Armed with guides and information about the city, they are brilliantly placed to tempt visitors and Londoners alike with the smorgasbord of world class shops, theatres and restaurants that are on offer."
More top news
Scotland Yard said its three-year investigation has concluded humans are unlikely to have been responsible for killings.
The May timetable change was intended to deliver huge benefits but instead saw services crippled in the south-east of England.
An interim report by the rail regulator warned of a ‘lack of clarity about roles and responsibilities’.