How to design a tube line
Plague pits, secret teams at TfL and a massive Bedfordshire warehouse: Making a new underground line is about a lot more than digging a big tunnel
Trains
Brian Mitchell was hit by four tubes before anyone intervened. Was automation to blame?
'Humans are not evolved to maintain vigilance without doing anything'
The big bus bust: How TfL lost a quarter of its passengers
London's once world-beating bus network has been in decline for a decade. Can a new plan turn things around?
Confused by the tube? You’re not alone
We look into the bamboozling history of the capital's iconic transport network