[Carruthers]

Originally Posted by Undertoad

MIT Paper shows that the NYC subway has been a major point of infection.

The longer time you spent on the train, the greater your chances of infection.

Also the Mayor never shut the subway down, but in lockdown busses and trains were the only mode of transportation -- and the subway had fewer trains running, ensuring that each train was full...

It's the same in London.

Second week of lockdown and Tube still packed with only 43% of trains running.

Transport for London has confirmed that only 43% of services are running on the Tube despite carriages still remaining packed.
Some London Underground trains remained crowded on Monday despite a further fall in passenger numbers and TfL calling for its services to only be used for ‘essential journeys by vital workers in the NHS and other critical services’.
It said passenger numbers on Monday morning were down 94% compared with the same day last year, but admitted to Metro.co.uk that only 43% of trains are running at normal times compared with 50% last week.
At peak times, 50% of services are running, a spokesman said.
Passengers are still complaining about the lack of space as they travel to work, leading to them being unable to follow government guidance to keep two metres away from others.

London Underground stations, especially those on the 'Tube' where the tunnels are barely larger than the trains, aren't particularly healthy places at the best of times due to the piston effect of air being pushed ahead of the trains.
I shudder to think of the speed that infection can be spread around the network.

Metro Newspaper