Which traffic signal component is specifically designed to help with evening visibility?

The component designed to assist with evening visibility is the reflector. Reflectors are integral in enhancing the visibility of traffic signals during low light conditions by bouncing light emitted from the signal’s lamp. This improved visibility ensures that drivers can see the signal clearly even in dim lighting, making it crucial for safety and traffic compliance at night.

While shades and louvers can influence the amount of light that reaches the signal and help prevent glare or reduce light pollution, they do not inherently improve visibility in low light conditions. The lens, on the other hand, is responsible for the color of the signal and the diffusion of light but does not specifically enhance visibility at night in the same way reflectors do. Thus, the reflector is the component that directly aids in improving visibility during evening hours, making it the correct choice.