What is the purpose of anti-slide devices on an escalator?

The purpose of anti-slide devices on an escalator is to prevent sliding. These devices are designed to ensure that the escalator's steps remain securely in place and do not shift or slide out of alignment during operation. This is crucial for maintaining safety and functionality, as sliding steps can create hazards for passengers using the escalator. Properly functioning anti-slide devices contribute to the overall reliability of the escalator, allowing it to operate smoothly without unexpected movements that could result in accidents or malfunctions.