What factor is important for devices used to control pedestrian traffic?

Visibility and accessibility are critical factors for devices used to control pedestrian traffic because they ensure that pedestrians can easily see and understand the traffic control devices, such as signals, signs, and barriers. High visibility helps to grab the attention of pedestrians, especially in busy or complex traffic environments, reducing the likelihood of accidents or confusion.

Accessibility is equally important as it ensures that all pedestrians, including those with disabilities, can interact with these devices effectively. This could involve features like audible signals for the visually impaired, or buttons placed within easy reach for people who use wheelchairs.

While cost, user comfort, and durability are also relevant considerations, they do not directly impact the immediate safety and effectiveness of pedestrian traffic control as prominently as visibility and accessibility do. Therefore, focusing on how well pedestrians can see and utilize the devices is key to promoting safe pedestrian movement.