It's not the distance; it's the time. Walking 20 minutes to a subway station only to wait 10-20 minutes on an unreliable train to take a 10-45 minute subway rid

It's not the distance; it's the time. Walking 20 minutes to a subway station only to wait 10-20 minutes on an unreliable train to take a 10-45 minute subway ride only to finish with another 20 minute walk is not remotely efficient. I've calculated in my city that for some routes, it's only barely twice as fast to take the subway over walking the entire way. Spending over an hour one way is not acceptable when it takes less than half that time to just drive, even in heavy traffic.