19.4. Escalators and Moving Walks

• Step width: Minimum 1000 mm (preferably 1200 mm) • Inclination: Typically 30 degrees, never more than 35 degrees • Speed: Not more than 0.5 m/s • Step riser height: Uniform, max 220 mm • Must include handrails on both sides, moving in sync with steps

This chunk outlines the general design standards for escalators. The step width should be a minimum of 1000 mm, which is ideal for usability, but ideally should be 1200 mm for better comfort. The inclination of the escalator should be around 30 degrees; however, it should never exceed 35 degrees to ensure safety and ease of use. The speed of the escalator is capped at 0.5 meters per second to prevent accidents and allow users to step on and off safely. The step riser height should be uniform, with a maximum height of 220 mm to avoid missteps. Finally, it is essential that handrails are included on both sides of the escalator, and they should move in sync with the steps so users can hold on securely as they ascend or descend.

Imagine walking up a set of stairs that is always just a bit too steep or narrow. It would be uncomfortable and potentially dangerous, right? That’s why escalators have specific design requirements; they help everyone feel safe and steady, just like a carefully designed staircase that allows you to also hold onto a railing as you go up.

• Emergency stop buttons at both landings • Skirt panel safety devices • Step demarcation in contrasting colors • Adequate lighting at landings • Anti-slip tread surface

This chunk addresses safety features that are crucial for escalators. Emergency stop buttons must be located at both the top and bottom landings, which allows users to quickly halt the escalator if something goes wrong. Skirt panel safety devices help prevent users from getting caught in moving parts. The steps should have contrasting colors, making it easier for users, especially those with visual impairments, to see where to step. Proper lighting is also necessary at landings to ensure people can see as they enter or exit. Finally, the tread on the steps must be anti-slip to provide adequate grip and prevent slips and falls.

Think of an escalator like a moving sidewalk in the airport. Wouldn’t you want it to stop if someone fell or a bag got caught? That’s why there are emergency stop buttons. Plus, if the edges are a different color, you can clearly see where to step, just like brightly colored curbs that help you see where to walk on the street.

• Tactile ground surface indicators (TGSIs) near landings • Warning signs about escalator usage • Voice alerts and visual displays for direction and caution

This chunk discusses enhancements made to escalators to improve accessibility. Tactile ground surface indicators (TGSIs) guide individuals with visual impairments to the escalator entrance, making it easier for them to navigate. Additionally, clear warning signs regarding using the escalator ensure that all users are adequately informed about its safe operation. Furthermore, escalators may include voice alerts and visual displays that signal direction and caution, which can be highly beneficial for people with hearing or visual disabilities.

Imagine walking blindly towards an escalator. How would you know when to stop or where to step? TGSIs act like a guide that informs you of what’s ahead, similar to how you might follow a trail of footsteps in a sandy beach to find your way back to your towel.

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