A4.33 ASSEMBLY AREAS.
A4.33.2 SIZE OF WHEELCHAIR LOCATIONS.
Spaces large enough for two wheelchairs allow people who are coming to a performance together to sit together.
A4.33.3 PLACEMENT OF WHEELCHAIR LOCATIONS.
The location of wheelchair areas can be planned so that a variety of positions within the seating area are provided. This will allow choice in viewing and price categories.
A4.33.6 PLACEMENT OF LISTENING SYSTEMS.
A distance of 50 ft (15 m) allows a person to distinguish performers' facial expressions.
A4.33.7 TYPES OF LISTENING SYSTEMS.
A listening system that can be used from any seat in a seating area is the most flexible way to meet this specification. Earphone jacks with variable volume controls can benefit only people who have slight hearing losses and do not help people with hearing aids. At the present time, audio loops are the most feasible type of listening system for people who use hearing aids, but people without hearing aids or those with hearing aids not equipped with inductive pickups cannot use them. Loops can be portable and moved to various locations within a room. Moreover, for little cost, they can serve a large area within a seating area. Radio frequency systems can be extremely effective and inexpensive. People without hearing aids can use them, but people with hearing aids need custom-designed equipment to use them as they are presently designed. If hearing aids had a jack to allow a by-pass of microphones, then radio frequency systems would be suitable for people with and without hearing aids. Some listening systems may be subject to interference from other equipment and feedback from hearing aids of people who are using the systems. Such interference can be controlled by careful engineering design that anticipates feedback and sources of interference in the surrounding area.
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