1 big rig = 10,000 cars. Seriously

Interesting fact from Norm King, director of the William and Barbara Leonard University Transportation Center at Cal State San Bernardino. The center is looking at ways to better deal with cargo traffic on freeways and told the SB Sun this:

Tractor-trailers are tough on highways and interstates because of their weight and the fact that they take up more space. A fully loaded tractor-trailer causes as much damage to a freeway as 10,000 cars, King said. "We're going to look at ways to distribute that weight more evenly," he said.

Comments

[yours truly, johnny dollar]

Freeway truck lanes are 22 inches thick for a good reason.
Number 1 (and mostly number 2) lanes are 7 inches thick
for a good reason.