Cellodad:  I'm sure as a visitor on vacation or business, you find the stops ever so convenient.  Like people who visit Hawaii crow about how wonderful it must be to live here - till they move. 
Buy my wife and I lived in Boston with no car for years -- too young, too dumb and too poor.
So I can tell you this from experience. On a rainy days (especially now Hawaii's Greens have outlawed water proof plastic bags, it was hell to go grocery shopping.  In flu season being trapped in Big Box transport disease incubators twice a day was  sickening ... literally. We never before, and never since, had so many colds and flues. When a line was blocked there were no alternate routes ... especially when you were in a Big Box stuck between stops. And it gave government workers who ran rail blackmail advantage in wage negotiations to beggar everyone else.
And please note:  Terrorists prefer the efficiency of targets prepackaged in Big Box containers, e.g. France's 300 train deaths. Not one at a time