Two years of tracking my Metro trips

Two years ago, I started tracking my WMATA rides for extremely trivial reasons. After a while, my curiosity is now ingrained as a habit, a small bit of gamification of my commute (even if that game is basically Calvinball).

(Since I originally started doing this to see how quickly I would ride in the same car, I should note that on three occasions, I’ve ridden the same car twice in one day. The longest gap between rides on the same car is 707 days between rides on car 3230.)

With two years of data in the books, I thought I’d share some highlights: 2,013 unlinked trips, using 986 unique railcars, covering about 73% of the current fleet. Seventy five of those cars will never be ridden again, retired as part of the 5000 series. From the current fleet, there are 333 cars I’ve yet to ride, and an additional 113 that have been retired before I had a chance to ride. The fleet makeup is constantly evolving as Metro continues to accept new 7000 series cars, so the precise numbers change often.

My obsession has provided means to monitor the introduction of the newest members of the 7000 series, with 706 cars of the 748 ordered now in service.

Beyond changes in the Metro fleet, I’ve been able to document changes in my own life – different daycares, different jobs, and different commutes. I’ve also noticed how Metro changes their operations and railcar assignments as they take on major track work and as their fleet evolves.

Some charts:

Most of my trips are commute trips; red bars correspond to WMATA’s peak fare periods.
I’ve ridden all but 2 of the 2000 series cars that are in service; I rode 75 of the 5000 series before they were retired.
More than half of my rides have been on 7000 series trains.
My regular trips make frequent use of all services except for the Red Line. Most trips are still tied to the Orange/Silver/Blue lines, serving my home station.

I was also curious if I could put two years of tracked trips into one chart, so here’s an annotated version:

You can see the retirement of the 5000 series cars, the slowly increasing size of the 7000 series fleet, re-assigment of cars around the system, particularly in response to this summer’s lengthy Platform Improvement Project shutdown. The retirement of most of the 5000-series fleet also shifted the 6000 series – previously common on the Green line, but then shifted to the Orange/Blue/Silver lines.

You can also see how some cars tend to stick to certain portions of the system. This is easiest to see with the Red Line, since it’s both the most isolated from other lines and the line I ride the least. Before the PiP, you can see how most 3000 series cars with numbers above ~3175 were assigned to the Red Line. Likewise, most 7000 series trains between ~7150 and ~7300 are also isolated on the Red Line, except for a few weeks during this summer’s shutdown.