TuSimple has multiplied its employee base and funding to develop its autonomous trucks. The company currently has more than 180 employees in San Diego and 500 worldwide. Image courtesy of TuSimple.

TuSimple has multiplied its employee base and funding to develop its autonomous trucks. The company currently has more than 180 employees in San Diego and 500 worldwide. Image courtesy of TuSimple.

Driving down Interstate 10 in Arizona, you might be able to spot one of TuSimple’s bright green, self-driving trucks...