In escalator systems, what does 'step demarcation' refer to?

Step demarcation in escalator systems refers to the visual cues that assist riders in identifying the boundaries of each step, typically achieved through contrast elements on the risers of the steps. This contrast enhances safety by making it clear where each step begins and ends, helping to prevent accidents, especially in low-light conditions or for individuals with impaired vision. By clearly defining the stepping area, demarcation aids passengers in maintaining proper footing while using the escalator, encouraging safe usage and reducing the risk of falls. This visual differentiation is crucial for improving the overall user experience on escalators, ensuring that individuals can navigate these devices confidently and effectively.