American Safety Council Defensive Driving Practice Exam

Crashes on the expressway are often caused by improper lane changes and following too closely, which directly relate to the dynamics of high-speed travel. When drivers change lanes without adequately checking their surroundings or signaling, it can lead to collisions as other drivers may not have time to react. Additionally, following too closely, or tailgating, reduces the time a driver has to react to sudden changes in traffic, such as a sudden stop from the vehicle in front.

Both of these behaviors are particularly dangerous on expressways, where speeds are higher, and the potential for severe accidents increases significantly. Maintaining proper distance and executing lane changes safely are critical for reducing the risk of crashes in such high-speed environments.