What is the maximum allowable speed for most escalators according to ANSI standards?

The correct answer reflects that ANSI standards specify a maximum allowable speed for most escalators in the range of 90 to 120 feet per minute. This speed range is established to ensure passenger safety and comfort while maintaining efficient transportation in high-traffic areas.

At higher speeds, the risk of accidents increases, and it can become challenging for passengers to enter and exit safely, especially in crowded conditions. Standards like those set by ANSI help establish uniform practices within the industry, emphasizing safety as a priority in escalator design and operation. The designated range not only supports the flow of people but also accommodates the capabilities of the machinery involved in escalator operation, contributing to the longevity and reliability of the equipment.