Both. The subway is safer by these four metrics:

* Number of deaths, miles traveled

* Number of deaths, per capita commuter

* Number of deaths from violent crime or negligence, miles traveled

* Number of deaths from violent crime or negligence, per capita commuter

So, to be safer than 0.07 death per billion miles in air travel and still have at least 4 death (there might be more deaths from other causes) and assuming nobody will die the rest of the year, also given 3M daily commuters from your numbers it appears the average commute in NYC subway is more than 52 miles?

What's the point of being intentionally obtuse? We're talking about commuter transit, which doesn't include airplanes.

I read what you wrote, I cannot read your mind, sorry about that.