Vehicles slip into gear and overshoot parking places, and drivers hit the gas when they expect to hit the brake. One automobile with a factory defect reportedly jumps into reverse gear unexpectedly. Convenience stores have special problems because of the large number of customers they serve and their patron mix. Efforts to maximize profits from available space have led to the introduction of many new products and services. Along with food and refreshments, some stores now offer gasoline, video cassettes, and entertainment games on the premises.
Customers require protection at specific traffic points.
These points are where vehicles change directions, where pedestrians walk across the vehicle path, and where vehicles park. We also know many adverse things about the drivers who enter parking lots. A statistically significant portion are drunk, high on drugs, or visually impaired. This is especially true during evening hours. Some drivers suffer from emotional or mental disorders, and some are immature and inexperienced.