There are pictures of large pickup trucks (think Ford F250/F350) flattened like a pancake fire from trying to pass one of these without alerting the driver they're there. When you're on a mine, these things always have the right of way.
I could be mistaken but I believe they move materials in rock quarries, at least that's what I saw on an episode of some discovery show many years ago. I still think about them regularly too since it's like 3 stories tall and has a stair case to get to the driver seat lol
These are the types of tyres, that when they blow have inch thick steel cable in the side walls that could decapitate three men in a go. Ask me how I know...