Down time

摘要

Over the past few years, there has been considerable debate on the risks and hazards associated with using lifts for evacuation,' says the International Organisation for Standardisation (ISO). 'As buildings get taller and larger, determining the extent of these risks and what can be done to minimise them is even more pressing, particularly as lifts can help people with restricted mobility and other problems to evacuate with relative ease. In some special cases, depending on the building's size and design, lifts may also significantly reduce general evacuation time.'