Intuitively this seems high but without any approximation of what percent of miles they are responsible for within Boston I can't tell if there is a unique prob

Intuitively this seems high but without any approximation of what percent of miles they are responsible for within Boston I can't tell if there is a unique problem or not. Boston has some pretty good subways. Though if public transportation improves I would hope that means the rate of car ownership goes down even if bad stats like this will make Uber/Lyft seem bad on the surface.