Originally Posted by dscheidt

The 2200 line cars are only on the blue line, and there are at least two sliding door cars one every Blue line consist. (It's an ADA requirement, the 2200's bubble doors aren't wheel chair compatible, and the consists have to have an even number of cars, matched into pairs.) The days of the 2200 are seriously numbered, the 5000 cars are coming into service, and the cars they're replacing on pink and green lines are getting sent to the red line, and the oldest red line cars are going to the blue line, and the 2200s (which are pushing 50 years old) are heading to the scrap yard, as well some of the next oldest series of cars.