> Help me understand this. Where do cyclists and ground-level public transportation go if they're not on the streets?

Public transportation is much denser ( even a paltry bus can fit at least 30 people vs a car which occupies slightly less space, but usually has a single person in it), and bikes take much less space. You can fit 4 bikes in the space of a single standard sedan; and a small bus is what, 2-3 sedans but 30 times the capacity?

You'd think, but come to San Diego and take a look at downtown. I frequently see 2-3 buses driving in a row down Broadway with single digits of occupants between all three.

Oh I see, they're still on the streets, just at a much higher density. (I read "commuters" to mean people not cars.)

>>>Where do cyclists and ground-level public transportation go if they're not on the streets?

Cyclists are on the sidewalk, and use little ringer bells to signal to pedestrians to move outta the way. For public transit "off the streets" I was mostly referring to the subway system. Buses and taxis are still "on" the street but the users are out of privately-owned vehicles. I wasn't clear on that.

>>>Wait a minute, quarantined and walked around?

Technically "restriction of movement" not "quarantined", I get sloppy and often use the two terms interchangeably. Quarantine = you are COVID+, inside a specially-designated hotel, which you can't leave. ROM = you are COVID- pending additional testing, can stay in any hotel, but can leave your room for essentials such as groceries/take-out food.

> Cyclists are on the sidewalk, and use little ringer bells to signal to pedestrians to move outta the way.

No, cyclists are on the bike lanes or, if they aren't there, with the cars. The sidewalk is for people on foot only, who are the most vulnerable and should be separated from other faster modes of transport.