What feature helps to prevent signal light confusion?

Color differentiation and positioning play a crucial role in preventing signal light confusion. Traffic signals utilize specific colors—red, yellow, and green—to convey distinct messages: red means stop, yellow indicates caution or prepare to stop, and green signals to go. This use of color not only adheres to established traffic codes but also helps drivers and pedestrians quickly understand the necessary actions to take.

Additionally, the positioning of these signals is strategically planned to ensure that each message is clear and visible from various angles. For example, placing red lights at the top of vertical signals helps reinforce the concept of 'stop' as the dominant signal, while the green light's placement at the bottom indicates a go. Together, the differentiation of colors and their locations create a visual hierarchy that minimizes the chances of misinterpretation, thereby enhancing road safety for all users.