Boston's subway cars and buses are very old, even when compared to other legacy systems.
Average vehicle age (in years)
Subway
Bus
0
5
10
15
20
25
30
35
22.5
7.4
22.5
7.7
36.6
9.5
28
11.7
15.8
6.9
23.7
8.8
New York, NY
Washington, D.C.
San Francisco, CA
Boston, MA
Chicago, IL
Philadelphia, PA
