That's one big fucking engine. Why anyone would want to stand near it while it went by at 60 mph is crazy.
Just to put some numbers behind that, here are the weights (both locomotive and tender) of these things;
UP 844 that was involved in the accident: 912,250 lbs or 456.1 tons
UP Challenger I posted: 1,073,900 lbs or 537 tons
UP Big Boy (the biggest steamer made): 1,250,000 lbs or 625 tons
THen to put it into comparison with today's modern diesel electric, like the GEVO's, they weigh around 430,000 pounds...
So, you're gonna NOT feel it when that steamer hits you.