London Assembly said:
"Buses are the busiest form of public transport in London. The city has 675 bus routes, with around 9,000 buses in operation and over 19,000 bus stops. Approximately 2.5 billion bus passenger trips are made every year, around double the number made on London Underground.
"TfL commissions private operators to run bus services in London, awarding seven-year contracts to operate bus routes. Although bus safety (in terms of casualty numbers) has improved over recent years, there was a spike in bus collision fatalities in 2015.
"The London Assembly Transport Committee is investigating two aspects of bus services in London: Network Design and Safety."