What feature helps reduce the risk of slipping on escalator steps?

The feature that significantly reduces the risk of slipping on escalator steps is the tread patterns or ridges on the step surfaces. These patterns are designed to provide enhanced traction for foot placement. When individuals step onto the escalator, the ridges help grip the sole of their footwear, reducing the likelihood of slipping especially in conditions where moisture or debris might be present on the steps. This design is a critical safety measure, as it plays an essential role in preventing accidents and ensuring that users can ascend or descend safely.

While bright colored steps can improve visibility and alert users to the edges, they do not enhance physical traction. Larger step size might offer more surface area, but if the tread patterns are not designed for grip, it wouldn't necessarily prevent slipping effectively. Additional handrails are vital for providing support while riding an escalator, but they do not directly influence the traction of the steps themselves. Therefore, the tread patterns and ridges are the most effective feature for ensuring stability and safety while using escalators.