Daily Overview on Instagram: "The London Underground at Rush Hour This visualization shows morning travel on the London Underground between 7:00 and 8:00 AM on September 15. At this time, more than a million passengers make their way into and through the city, with the busiest lines — including the Central, Northern, and Piccadilly — carrying hundreds of thousands of commuters each day. The Underground as a whole handles around four million journeys daily, making it one of the busiest metro syst