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Quiz: Do you know how to drive safely around large trucks?

File: A semi-truck maneuvers around a traffic cone during training at the Western Trucking School Aug. 3, 2005 in Turlock, California.
Justin Sullivan/Getty Images
File: A semi-truck maneuvers around a traffic cone during training at the Western Trucking School Aug. 3, 2005 in Turlock, California.

Every day, tens of thousands of trucks drive more than 8 million miles on the roads of Southern California, carrying the goods we buy and use in our daily life. But at up to 20 times the weight of the average sedan, when they crash, they can cause massive damage.

Since the economy has rebounded, truck traffic has increased — and so have truck crashes. But it’s frequently the actions of the car driver, not the truck, that cause the most serious collisions.

Still have questions? "Ask A Trucker" — just submit your query below. We'll put them to our experts.