What is the purpose of using the dash-roll technique?

The dash-roll technique is primarily used to assist in extricating victims from a vehicle by manipulating the structure of the car, particularly the dashboard area. The correct answer highlights how the technique involves pushing the entire front end of the vehicle upward, which helps in creating additional space and ensures better access to the occupants who are trapped inside.

By lifting the front end, rescuers can avoid further injury to victims, particularly those who may be pinned beneath the dashboard or steering wheel. This upward movement not only facilitates access, but also helps to relieve pressure on the trapped victims, providing a safer and more efficient way to perform the rescue. The concept revolves around gaining the maximum amount of space possible to effectively work on extricating individuals, thus enhancing the overall rescue operation.