How is 'accessible means of egress' defined?

'Accessible means of egress' is defined as a route that ensures individuals with disabilities can evacuate safely and efficiently during an emergency. This definition emphasizes the importance of providing accessible pathways to various safe locations during an emergency situation.

The correct answer encompasses a broad set of options: it includes routes to an area of refuge, which is a designated location where individuals can wait for assistance if they cannot evacuate immediately; horizontal exits, which allow individuals to move around barriers; and public ways, which refer to streets and other public areas that are outside of the building. All these pathways are crucial in ensuring safety for individuals with mobility impairments.

The other choices are more limited in scope. They focus on specific types of exits or routes but do not include all the essential components necessary to constitute a fully accessible means of egress. The comprehensive approach of the correct definition ensures safety and accessibility for all individuals during an emergency evacuation.