On: An entrepreneur has built a one-metre-long stretch...

[Retric]

Passengers is a funny static as distance makes a real difference. On top of that there is a 3x difference in population size.

Edit: It’s 80 billion passenger kilometres per year which is a respectable 3+ kilometres per person per day.

[mjw1007 → Retric]

I don't think your first sentence is right.

From the link: « The London Underground ("The Tube") had an additional 1.34 billion passengers in 2015-16 »

[Retric → mjw1007]

Data was from here which includes several underground stations. https://orr.gov.uk/statistics/published-stats/station-usage-... But, they are counting only long distance rail.

Anyway, 80 billion passenger kilometres, per year is very good relative to 327.1 billion miles driven.