No one can answer this question. Suffice to say there are millions world wide.
estimated:8-9 million trucks
There are many different fuel mileage ratings for over the road trucks. On average over the road trucks get 7 to 8 miles per gallon of fuel.
Too many to count.
It is impossible to know exactly how many semi trucks are on the road in the U.S. It is estimated that there could be anywhere from five million to thirteen million semi trucks on the road in the U.S. on any given day.
All of them except for the ones broken down on the side of the road.
Regular trucks don't have as much tread as ice road trucks. Ice road trucks have strong steel frames and ice wheels as well.
No one can answer this question. Suffice to say there are millions world wide.
No trucks
yes
the tank trucks you see on the road
If all together in the owners yard, then it is a 'Fleet of Trucks. However, if they are on the move , on the road together, then it is a convoy.
4 wheel drive trucks are designed for off road use. Always practice safe driving be it on or off road.