Interstate 5 is the most Western north/south freeway in the country, going from San Diego, CA to Vancouver, British Columbia. I drove I-5 from Seattle to central California this week and was struck by the concentrated, non-stop commercial traffic going in both directions. Big-rig traffic of all kinds was heavy; lots of logging trucks in Washington and Oregon, heavy construction equipment being moved on flatbeds, agricultural machinery and new cars going to market, plus numerous UPS, FedEx, Target, and WalMart rigs. I make this drive several times a year and the traffic this time seemed unusually heavy. It’s only anecdotal evidence, but if the economy is humming along like the truck traffic on I-5, we should consider ourselves in pretty good shape.