Final answer:
You must stop at the stop sign, at a clearly marked stop line, or the crosswalk before entering the intersection, as this rule is vital for controlling speeding vehicles and ensuring pedestrian safety.
Step-by-step explanation:
Chapter 31 requires that you must stop at the stop sign, at a clearly marked stop line, or the crosswalk before entering the intersection. The importance of this rule is highlighted by the risk of vehicles speeding through intersections without regard for the posted speed limit, thereby endangering pedestrian safety. Traffic signals are essential as they compel vehicles to slow down, which in turn, allows pedestrians, like students going to or leaving campus, to cross with less risk of having to dodge traffic. The installation of a traffic signal can significantly decrease the rate of accidents and can also be causally linked to preventing tragedies resulting from these accidents, like the loss of life.