Full disclosure: I have deliberately driven major road projects (such as the Dan Ryan expansion in Chicago) instead of diverting around them simply to observe their construction.
I've done drives in the DC area, where I live, just to observed the construction at the Springfield Interchange (I-95/395/495/The Beltway) and the Woodrow Wilson Bridge replacement project. Just this past Sunday, I drove to Pennsylvania just to drive Interstate 99.
My test results:
Joe Normal: 21% Nerd, 17% Geek, 47% Dork.
Thank G*d I'm not completely normal, or else I'd probably be a jerk.