Final answer:
Less than half of drivers stop at stop signs, resulting in safety concerns, traffic violations, and a high number of accidents, which demonstrates the need for better traffic control measures like traffic signals.
Step-by-step explanation:
The question refers to driver behavior at stop signs, which has been examined in various studies, including those conducted by the Federal Highway Administration. These studies often assess traffic safety and inform decisions on whether to install traffic signals at intersections. From the information provided, we can infer that less than half of drivers stop at stop signs, leading to safety concerns. Increased traffic citations, as indicated in an experiment mentioned, suggest that non-compliance with traffic rules is a common issue. Furthermore, the high rate of accidents, including fatal ones, underscores the need for better traffic control, such as the introduction of traffic signals. A traffic signal helps to enforce speed limits, ensures pedestrian safety by allowing them to cross at appropriate times, and reduces the number of accidents.
The question is asking about the percentage of drivers who stop at stop signs based on a study conducted by the Federal Highway Administration. Unfortunately, the provided information does not include the specific percentage mentioned in the study. However, it implies that the percentage is less than half, indicating that more than half of drivers do not stop at stop signs on average.