Are you involved with elevator or escalator design? Do you get nervous when the elevator shakes, rattles, and rolls? If so, a new ISO standard aims to improve passenger experience when using lifts, escalators, or the moving walkways commonly found in airports. The new standard aims to determine ride quality by specifying the definition, measurement, processing, and expression of vibration and noise signals that affect user experience. It consists of two parts:
Those working in the industry can now use ISO 18738 to understand passenger experience because it provides measurements that correspond to what users perceive, for example, by taking into account factors such as the acoustic characteristics of the immediate environment.
“It’s interesting to note that the previous edition of the standard (2003), which only looked at lift ride quality, was applied by NASA in 2010. They consulted it when calculating the optimal rate of acceleration of the Phoenix capsule used to rescue the 33 Chilean miners, in order to ensure its smooth ascent and avoid discomfort,” adds de Mas Latrie.
Implementation of ISO 18738 will result in measurements that are:
- Simple to understand without specialized knowledge
- Well correlated with human response
- Accountable via calibration procedures traceable to national standards
- Developing manufacturing specifications and calibration methods
- Defining specifications for ride quality in contracts
- Measuring ride quality of lifts, escalators, and moving walks