ATSSA Traffic Control Supervisor Re-Certification Practice Test

When a vehicle is decelerated to a stop by stationary non-redirective impact attenuators, it refers to the ability of the attenuator to absorb the energy of the vehicle upon impact, slowing it down effectively until it comes to a complete stop. These devices are specifically designed to manage and mitigate the forces exerted during a collision, reducing the severity of the crash and enhancing safety for both the vehicle occupants and any surrounding pedestrians or infrastructure.

Non-redirective impact attenuators are fixed in place and do not redirect the vehicle after impact, which is a critical distinguishing feature. Their primary function is to absorb and dissipate energy, ensuring that the vehicle does not continue moving forward or change direction after hitting the device. This characteristic makes these attenuators a crucial element in traffic safety design, as they help prevent the vehicle from rebounding back into traffic or striking other objects, thereby minimizing the risk of further accidents.

The other choices reflect actions that do not align with how stationary non-redirective impact attenuators operate, such as turning away from impact or rerouting. These options suggest a level of mobility or redirective capability that stationary non-redirective models do not possess, as their design is to remain in position and serve