If you’re a regular on my twitter feed, you know I’m often prone to random adventures. Today, I tried my latest: attempting my weekly commute from Quartz Hill (north end of LA County, where the San Gabriels meet the Mojave Desert) to USC (on the south end of the city of Los Angeles), by public transit.
I parked at the Lancaster Metrolink Station and took the Antelope Valley Line south to Los Angeles Union Station at 0655. After a brief coffee stop I switched to the LA Metro Red Line subway to Pershing Square Station. The station exit dumped me right at the northwest corner of Hill and 4th St, where I caught Metro Local 81 (bus) southbound on Figueroa St., arriving at Figueroa and Jefferson at 0920 for a total outbound trip time of 2 hours, 25 minutes.
This is about 45 min longer than driving through morning traffic. That’s an additional 45 minutes taken out of my day each way right? Lame. On the surface, this seems like an insurmountable deficit for the public transit argument.
However, the advantage of public transit is seldom that it offers a faster solution… other factors need to be taken into consideration.

Snapshot out the window while crossing the San Gabriels on Metrolink 208 from Lancaster to Union Station.
First of all, let’s consider the fact that I didn’t have to drive. This freed me up to actually use part of my commute time studying, something which is impossible (or, at the very least, highly dangerous) to do while driving in LA traffic. In practice, this was difficult to do on the subway and bus portion of the trip, as well as during the transfers of course, so chalk that up that time as nada. However, on the Metrolink train from Lancaster to Los Angeles, I got a good 1.5 hours of pretty quiet studying in.
Engineering analysis of this first point; non-engineers, you may skip this paragraph and not lose a beat. I estimate an outbound commute time of 2.5 hours at 0.7 productivity efficiency, 11 hours on campus at 0.85 efficiency, and a return trip of 2.5 hours at 0.7 productivity efficiency (including composing this blog post, and sleeping, which I cannot safely do in the car despite my early morning for work tomorrow). For the car I assume 1.75 hours outbound commute at 0.1 efficiency (I’ll allow catching up on KCRW’s Which Way LA? and To the Point as productive), 12.25 hours on campus (can stay longer when driving because I don’t have to catch a particular train back) at 0.85 efficiency, and 1.25 hours return trip at 0.1 efficiency (calling people I need to catch up with). Net utilized hours were 10.71 (0.7025 overall productivity) for driving and 12.53 (0.7881 overall productivity) for mass transit.
On a first cut estimate, I got more productive hours out of my day for less overhead of my time by taking mass transit.
Secondly, let’s consider cost. No skipping the math this time… Total fare down and back on mass transit was $28.50. For driving, I estimate 3.5 gallons of fuel used (just over a quarter tank in my ’06 Nissan Sentra, 33mpg avg) at the current Lancaster gas price of $3.80/gal (yeah I know, shut up mid-westerners). With an additional $5 for parking, that comes to $16.90. BUT, what about the miles put on the car? The cost of maintenance on your vehicle, averaged out over time, comes out to…. well, there’s all sorts of estimates with different assumptions, most between $0.35 and $0.60 per mile.. in reality, it depends on your car, your driving style, and how well you care for it. Let’s go with 0.25/mile, pretty conservative. That makes the total-cost-of-driving estimate come out to $55.80! Transit wins again in the long run.
Oh yeah, and you’re freaking saving the environment. That’s probably a separate article.
The major drawback to using mass transit today was the bus. It was a bit crowded. With close proximity to… interesting people. However, I am going to wait for more data points, as, today, approximately one-third of the bus appeared to be loud, elderly Japanese women with bright suitcases. Even for Los Angeles, that has to count as an outlier, right? Maybe not. We’ll see.
Important, subjective, additional point: I could snag a couple shots of fiery Irish whiskey at Casey’s on the way up, which is definitely not advisable when driving.
At the end of the day, the real question is: would I do it again? The answer is yes. I think I’ll buy a TAP card next time I pass through Union Station.
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