Tube 150: Are driverless trains part of the future?
11 January 2013 Last updated at 14:20 GMT
Driverless trains on the London Underground have been discussed but is it really a part of the Tube's future?
As the Tube celebrates its 150th anniversary, BBC London's transport correspondent Tom Edwards has travelled to Paris to look at the Metro's fully automated driverless trains.
He spoke to Gerard Churchill from Metro operator RATP and Mike Brown from London Underground.