The network is close to maximum capacity with 35 degrees above ground and much higher below. And there's also a trespasser on the line - a terrified German Shepherd.
How TfL took on the responsibility of ensuring King Charles' coronation ran as smoothly and safely as possible. Plus the temporary revival of an art deco Piccadilly line train.
Among the challenges on the underground are a train strike on FA Cup final day, a points failure at Baker Street, and thousands of Billy Joel fans at Hyde Park Corner.
The fare evasion team scour the network for suspected persistent fare evaders, and on the weekend of the Notting Hill Carnival there are reports of a fire at King's Cross station.
TfL staff can't let their guard slip on a hot July weekend as they contend with threatened assaults, lost children, fare evaders, and one of the biggest parties in the country - Pride.
London is home to 13 professional football clubs and managing the flow of fans on every match day is a huge logistical challenge, particularly when the season's final Premier League matches kick off simultaneously. This year the challenge is even greater because tens of thousands of cyclists are descending on the capital for the annual Ride London event, and eight miles of city centre roads are now closed to traffic.
