Applying Human-centered Design to Enhance the Safety of Elevators and Escalators

Elevators and escalators are the circulatory system of modern urban life, moving millions of people each day through skyscrapers, transit hubs, hospitals, and retail centers. While these machines are engineered to high safety standards, a significant number of accidents stem not from mechanical failure but from user error, misjudgment, or poorly designed interfaces. Applying human-centered design (HCD) offers a powerful framework to reduce these incidents by aligning the equipment's features, controls, and feedback systems with the natural behaviors and limitations of people. This article explores how HCD principles can be systematically applied to elevators and escalators to create safer, more intuitive experiences for all users.

What is Human-Centered Design?

Human-centered design is a creative problem-solving approach that prioritizes the needs, capabilities, and contexts of the people who will use a product or system. Originating from the fields of ergonomics and product design, HCD relies on deep user research, iterative prototyping, and constant feedback loops. For elevators and escalators, this means moving beyond compliance with basic safety codes and instead designing for how people actually behave—whether they are distracted, in a hurry, elderly, visually impaired, or pushing a stroller. The goal is to make safe behavior the easiest and most natural path, reducing the cognitive and physical effort required to operate the machinery correctly.

Common Safety Issues in Elevators and Escalators

Understanding the recurring safety incidents helps pinpoint where HCD can have the greatest impact. These issues often involve predictable human behaviors rather than random acts:

  • Door-related injuries: Doors closing on passengers, especially those with mobility devices or pets, remain a top risk. Users may try to hold doors open manually or rush through as they close.
  • Trips and falls on escalators: Many escalator accidents happen when riders lose their balance while stepping on or off, or when they carry too many items and cannot grip the handrail.
  • Entrapment and panic: Elevator entrapments, though rare, can cause panic and lead to risky attempts to force open doors or exit without help.
  • Misuse of controls: Children or unfamiliar users may press emergency buttons accidentally, or adults may use floor-select buttons as playthings, causing nuisance stops.
  • Emergency communication failures: When an elevator stops, users often cannot easily locate or operate the emergency phone or intercom, delaying help.

Each of these challenges can be reduced by designs that anticipate human error and guide correct behavior.

Core Principles of Human-Centered Design for Vertical Transportation

Applying HCD to elevators and escalators involves five foundational principles, each supported by tangible design decisions.

Empathy and User Research

Designers must first understand the full range of users: a child alone in an elevator, an elderly person with a walker, a parent with a stroller, a delivery worker with a hand truck, and a visually impaired individual. Observational studies in busy lobbies and transit stations reveal friction points—such as hesitation at the door, confusion about which hall call button to press, or difficulty reading floor indicators. This research informs refinements like larger button targets, clearer directional arrows, and placement of controls at heights accessible to wheelchair users.

Accessibility and Inclusive Design

Safety and accessibility are deeply intertwined. Universal design features such as tactile floor indicators (Braille and raised numbers), audible floor announcements, high-contrast button lettering, and voice control options make elevators usable for people with visual, hearing, or mobility impairments. For escalators, contrasting edge lines and audible warning tones near the comb plate help reduce falls. By designing for the margin—older adults, children, people with disabilities—the experience improves for everyone.

Intuitive User Interfaces

The interface between human and machine must be immediately understandable without instruction. For elevators, this means consistent layouts: floor buttons arranged logically (often in a grid or column), emergency buttons clearly separated and labeled with standard icons, and color-coded call buttons (e.g., up/down arrows illuminated in green/red). For escalators, a clear path to transition from walking to standing, with visual cues like a yellow stripe separating the step edges, helps users stabilize. Simple, familiar designs reduce confusion and hesitation, which are often precursors to accidents.

Feedback and Communication

Users need real-time information to make safe decisions. Elevators should provide audible and visual feedback for every action: a chime when a floor is registered, a door-open indicator that shows countdown, and a clear display of current floor and direction. Emergency situations demand even clearer communication: a loud automated voice stating “elevator is stopped, help is on the way” with estimated arrival time, plus a visible, accessible emergency phone with a single large button. Escalators benefit from warning chimes near the end to alert riders to step off, and speed-change warnings if the unit switches direction.

Fail-Safe Mechanisms and Error Prevention

Rather than relying on users to remember safety rules, good design embeds safety into the system. Door sensors that detect even light pressure (to protect a toddler’s hand) and force-sensitive edges that reverse automatically are standard, but HCD pushes further: sensors that detect if a passenger is still boarding as doors close, or time-delay systems that give extra time for slower movers. Escalator emergency stop buttons should be placed at both ends and clearly identifiable by color (typically red) and location (not blocked by passengers). The design philosophy is to make it almost impossible to do the wrong thing and easy to recover if something goes wrong.

Real-World Innovations in Human-Centered Elevators and Escalators

Several manufacturers have already integrated HCD principles into their products, offering concrete examples of how safety can be improved.

Otis Gen2™ Elevator with Intelligent Door System

Otis Elevator Company introduced a system that uses light-curtain sensors across the door opening, not just a single beam. This creates a safety zone that detects people or objects even if they are lying close to the floor—a scenario where traditional sensors may fail. The system also includes a door-reversal logic that slows the closing speed when anticipating contact, giving users extra reaction time. This design came from observing that children and pets often move unpredictably near elevator doors.

KONE UltraRope™ and Predictive Maintenance

While not directly a user interface, KONE’s UltraRope technology reduces elevator downtime by replacing heavy steel cables with lighter carbon-fiber ropes, enabling longer travel heights and reducing maintenance needs. From a human-centered perspective, fewer breakdowns and stuck elevators directly translate to improved safety and user trust. KONE also offers a “destination dispatch” system that groups passengers by destination floor, reducing crowding inside the cab and preventing the confusion that can lead to door-related incidents.

Thyssenkrupp MULTI Elevator (Rope-less System)

The MULTI system uses linear motor technology to move multiple cabs in a shaft, similar to a vertical subway. From an HCD viewpoint, it enables smaller, more frequent cabs that reduce wait times and cramming, which lowers the risk of door injuries and passenger falls. The system’s control interface includes personalized call buttons near each car that light up on user demand, minimizing confusion about which elevator will arrive.

Benefits of Human-Centered Design for Elevator and Escalator Safety

Applying HCD yields tangible safety gains beyond bare compliance:

  • Reduced user errors: Clear interfaces mean fewer wrong floor selections, fewer emergency-call misuses, and less panic during entrapment.
  • Faster emergency response: Intuitive communication systems help passengers stay calm and contact help quickly, reducing rescue times.
  • Lower fall and trip incidents: Escalator designs with better visual cues, handrail positioning, and step-edge markings decrease accidents, particularly in high-traffic public spaces.
  • Greater accessibility: When people with disabilities can use equipment independently and safely, the entire population benefits from the same design improvements.
  • Increased user trust: People are more willing to use elevators and escalators, reducing stair congestion and making buildings more efficient.

These benefits compound: fewer accidents mean lower liability costs for building owners, less downtime for equipment, and a better overall experience for tenants and visitors.

Overcoming Implementation Challenges

Integrating HCD into existing or new elevator and escalator systems is not without obstacles. Cost and retrofitting complexity are often cited as barriers, especially for legacy installations in older buildings. However, many HCD improvements are low-cost: updating signage, adjusting button layouts, or adding audible alerts. For major redesigns, the long-term savings from reduced accidents and higher user satisfaction can offset initial investments. Another challenge is regulatory alignment—some nations have strict codes for elevator dimensions, button placement, and alarm signals that may limit innovation. Designers can work with standards bodies (such as ISO 8100 for lifts) to propose updates that incorporate HCD evidence. Finally, cultural differences in user behavior (e.g., how people use handrails or respond to alarms) require localized research. A solution that works in Tokyo may need adaptation for a subway in New York.

Future Directions: Smarter and More Human-Centric Systems

The next generation of elevators and escalators will likely incorporate AI, IoT sensors, and predictive analytics to further enhance safety with a human-centered lens. Imagine an elevator that learns typical travel patterns in a building and adjusts door speed or waiting times to reduce crowding. Or an escalator that detects a person stumbling (via pressure sensors or cameras) and slows down or stops automatically before a fall. Voice and gesture controls could replace physical buttons, offering touchless operation—critical for hygiene and accessibility. However, these technologies must be designed with user trust and privacy in mind: transparent data use, simple override options, and fail-safe manual backups. The National Institute on Aging provides guidelines on fall prevention that can inspire escalator design for older adults.

Conclusion

Human-centered design offers a systematic, empathetic approach to making elevators and escalators safer for everyone. By focusing on the actual behaviors and needs of users—rather than just engineering tolerances—designers can prevent accidents before they occur, improve emergency responses, and create inclusive systems that serve all people regardless of age or ability. Building owners, manufacturers, and regulators should adopt HCD as a core practice, embedding iterative user testing and inclusive design into every phase of product development. As urban populations grow and buildings rise higher, the safety of these vertical conveyances will depend as much on the human mind as on the machine. Designing with people in mind is not only a safety imperative but a commitment to dignity and trust in the spaces we share. For more information on human-centered design methodologies, consult the IDEO Design Kit or the Web Content Accessibility Guidelines (WCAG) 2.1 for inclusive design principles that can be adapted to physical environments.