18 wheelers are very big and madly loud, they're so monstrous that one of the Transformers can take the form of an 18 wheeler (as I'm sure you know already), I don't think there's a name for this phobia, however I can understand where you are coming from and if you explain your fear to other people will get it too.
Yes, 18 wheelers have 18 wheels.Some tractor trailers have more, some less.
The statistics are not broken down by that category (i.e.: 18-wheelers, 10-wheelers, 6-wheelers, etc.). They are all classified as "commercial" vehicles.
# no way.
Some of them do.
Yes
No.
Steel or aluminum.
If you mean cruise control, yes.
Two or more.
Progressive and Travelers is the company witch has truck insurance for 18 wheelers. They have the best quotes on the insurance you may find they on the internet and call to this company.
1.2 million
Situation dependent.