When Disabled elevators are provided in public buildings, barrier free elevators must be provided. The design requirements for barrier free facilities in the waiting hall are as follows:
1. The depth of the waiting hall is greater than or equal to 1.80m; Button height 0.90-1.10m; The net width of elevator door opening is greater than or equal to 0.90M;
2. The display and sound can clearly display the up and down running direction of the car, the number of floors and the arrival sound of the elevator;
3. The elevator entrance of each floor shall be equipped with floor signs, and the elevator entrance shall be provided with a blind lane.
