For the past year, every couple of months when I drive somebody to the airport, I spend a greater portion of the driving time underground. I had my longest stretch driving through the big dig today on my way home from the airport. I tend to get creeped out if I’m driving and I can’t see the sky for several minutes. It feels odd driving down an artificially lighted tunnel during the day. And while I was driving home not seeing the sky I started wondering if this is what our future transportation system would look like if the earth was destroyed by global warming and nuclear fallout, leaving hordes of inarticulate zombie mutant gangs to roam the earth’s surface while the few remaining survivors of the human race have to burrow underground in order to create habitable living conditions.

I’ve probably seen too many sci-fi disaster movies.