An alpine slie is a long chute on the side of a hill, usually built by ski resorts to supplement summer income. A wheeled cart is used to navigate the slide. The ride is similar to a bobsled ride, except that it rolls over a smooth track - generally cement or fiberglass - rather than sliding on ice. The cart usually accommodates one or two passengers and is controlled by a hand brake located between the rider's legs. Letting go of the brake causes the cart to stop; pushing or pulling the handle causes the brake to release and allow the cart to accelerate. The ride is unique among amusement type rides in that the rider has complete control over his or her speed and ride experience. With this control comes responsibility: the rider does have to ensure that the cart is not going too fast; otherwise it is possible that the cart will overturn at curves causing the possibility of injury.