I'm Still a Nerd

Long ago, when I was new to blogging, I commented that I was a huge nerd because I decided to plot my car mileage vs time. I never stopped being that nerd, now I just have a much larger sample size.


My car mileage is still fairly linear, but you can see that there has been a slight change in the slope over the last couple years. (You can also see that I got really bad about getting my car in for regularly scheduled oil changes in the late 2008, early 2009 timeframe, but let's not focus on that.)

Looking back at the data, I can see that between January 2005 and January 2008 I drove approximately 44,000 miles. Admittedly, I did drive a huge road-trip one Christmas (nearly 4,000 miles in less than two weeks), but that's still averaging just under 15,000 miles per year. Over the more recent 3-year period (January 2008 to January 2011), I drove only ~35,000 miles. The funny thing is, I've actually increased my commute distance by a couple miles per day since June 2008. How am I driving less?

I think the big change is that in June 2008 I moved close a train station that allowed me to occasionally take commuter rail to work instead of drive. Nowadays I can also take the light rail or bike to the train station. I have also, over the last few years, become a big fan of new urbanism, walkable neighborhoods, and public transit (I've always been a fan of biking places if possible). Also, more recently, I've moved in with my girlfriend and now make her drive me places sometimes because car pooling is more efficient or I'm planning to drink alcohol (or I'm feeling lazy and talk her into driving). Also, this last fall I had a problem with a bent wheel that I procrastinated on fixing because I didn't want to pay all the money since I knew I needed tires anyway.

All of this combined means that I drove around 11,300 miles in calendar year 2010. That's about 2,400 less than I drove the first 12 months I owned my car!

Finally, in what is definitely a miracle of Honda engineering, my car continues to get around 30-32 mpg on average. So by those numbers, I'm saving myself 75 gallons a year which was probably worth between $150 and $225!

Finally, in a particularly ironic turn of events, in my 2007 blog post on my driving I was pissed off to learn how much of my gasoline costs went to taxes. Now, in 2011, I've educated myself a lot more about transportation funding/policy and I've seen some income growth while inflation has been nearly non-existent. As a result, I'm now a huge fan of raising taxes on gasoline in Maryland (since the gasoline tax is not indexed to inflation and has not been increased since 1992), especially if its used to fund effective public transportation, bicycle transit improvements, or improve run-off control from existing highways.

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By the way, the latter part of the last decade was actually a period of time in which the US was becoming less car dependent. Some group called The Center for Clean Air Policy released a study that included a chart showing that from 1960 into the mid-90's GDP growth and growth in vehicle miles traveled (VMT) tracked each other almost exactly. But around 1995, the two started to diverge, with GDP growth outpacing the growth in VMT. Very, very encouraging news! Good blog post with commentary from the New York Times.