观众控制

在某一大型公共场所中，将保障内部观众及运动员或演艺人员安全的各种工作准备就绪至关重要。疏散系统必须时刻处于待命状态，如果需要迅速疏散体育场，首先应确保该系统能够将扬声器播音传达至场馆的各个位置；

Crowd control

In a major public venue, it is vital that preparations are in place for looking after the safety of the spectators and athletes or entertainers inside, Evacuation systems must be in place, with the ability to get loudspeaker announcements out to all parts of a venue a paramount consideration if swift stadium evacuations are to be possible,