There’s no denying that London’s Tube system is pretty efficient. Hosting 5 million journeys a day, its busiest lines manage 36 trains an hour at peak times. That’s a train every 100 seconds.
Some lines, however, are currently running a service that, by London standards, is a little threadbare. The busy Piccadilly Line, for example, manages just 24 trains an hour, a rate that no doubt seems irreproachable when viewed from the beleaguered public transit systems of New York or