What is a common feature of crash cushions?

Crash cushions are specifically designed to absorb impact energy and reduce the severity of collisions. By gradually slowing vehicles down upon impact, they help to prevent more serious injuries and damage that could occur if a vehicle were to strike a rigid object or barrier at full speed. The effectiveness of crash cushions lies in their ability to dissipate energy progressively, which provides a more controlled stop for the vehicle. This design is essential in safety applications, especially in areas with high traffic volume or where physical barriers are present.

The immediate stopping of vehicles is not feasible with crash cushions, as such a design would likely lead to harsh impacts and potentially exacerbate injuries. Redirecting traffic is also not the intent of crash cushions; they are instead used to protect areas of potential collision. Lastly, while aesthetics may play a role in certain installations, the primary function of crash cushions is safety, rather than serving as decorative elements.