 Complete the following phrase:  The alternative to a standing start is a rolling start. Standing starts are often deemed safer in Formula sports, due to the higher acceleration speeds, which could cause problems if a rolling start were used, based on the speed of the safety car and regulations regarding the start some forms of motorsport are strict on when cars may accelerate after the safety car enters pit lanesome do not permit acceleration until the cars are near the start line at starters orders. A standing start can cause problems, however, such as stalled cars being hit by drivers who start behind them on the grid. Riccardo Paletti was killed in just such an accident at the 