Daniels is responsible for TfL’s bus and tram services, as well as overseeing the regulation of taxis and private hire operators, a role which has seen him draw the anger of London’s black cab trade which feels TfL has exposed it to “unfair” competition from cheaper rivals.
His role also puts him on charge of TfL’s road network, including delivering Britain’s most ambition cycle lane roll-out.
TfL says Daniels will leave the organisation towards the end of the year.
Mike Brown, London’s Transport Commissioner, said: “Leon had intended to retire in 2015 but agreed to stay on after my appointment as Commissioner.
“He has made a very significant contribution to TfL and London and has done this critical job for longer than any of his predecessors.
“Our progress under his leadership has been considerable. This includes building a bus service that is the envy of all world cities, laying firm foundations for radical change in walking and cycling and helping focus us on improving road safety and air quality to help secure our city’s future.
“Leon led our Surface teams through the most successful Olympic and Paralympic Games and, as head of our resilience functions, has provided leadership and support at difficult times.
“I am very grateful for the advice and support he has given me, and we will all be wishing him the very best for the future.”
