Anyone driving down Interstate 35 is used to a steady stream of semis with deliveries in tow. Like other road safety issues, it’s such a common occurrence that most drivers forget about the inherent dangers cars face in sharing the road with much larger vehicles. Semis can weigh up to 80,000 pounds, and they need more time to stop and more space to turn. Given the laws of physics, if a car collides with a truck, it can be catastrophic.