Yet the Sides Are Two

Doors are not complicated constructions. They either open or close. I have witnessed the ancient structures of Asia and Europe, some thousands of years old, and many of them had doors. So I don't understand why the MBTA can't seem to figure doors out. Sometimes, they're jammed against the platform (and we all have to shift to the left side of the train to offset the weight), sometimes the back ones fail to open, and a few times this week, doors couldn't close. On Tuesday, I was late to work when I thought I'd be early because for thirty minutes, we stood there as the technicians did everything they could to close the door. There was shutting the train on and off, and a lot of tugging, but the doors wouldn't budge. And finally we couldn't wait anymore and had to take a different line. At least the MBTA wheels are still round and rolling.