What type of crashes are most frequent on interstates?

Answer: C — Rear-end collisions

Rear-end collisions are the most frequent type of crashes on interstates largely due to the high speeds at which vehicles travel and the frequent stop-and-go traffic that can occur, even on high-speed roadways. Drivers may not always maintain a safe following distance, leading to these types of accidents when the vehicle in front suddenly slows down or comes to a stop. Interstate driving often involves long stretches of straight roadway, which can lead to complacency among drivers who may not remain as vigilant as they should. When a driver is distracted or fails to react quickly enough to the vehicle in front, a rear-end collision can easily occur. This type of crash is exacerbated in congested traffic situations, where abrupt stops can catch drivers off guard, further increasing the likelihood of rear-end impacts. In contrast, head-on collisions tend to be less frequent on interstates because these roads are typically divided by barriers or markings that prevent vehicles from crossing into oncoming traffic. Side-impact collisions usually occur at intersections or when vehicles change lanes, which is less common on long, straight stretches of interstate. Roll-over accidents, while serious, do not happen as frequently as rear-end collisions, especially considering the nature of interstate traffic flow and conditions.