In 
            public  
            spaces/facilities | 
          Clear, well written messages 
           | 
          Flashing lights | 
          To be avoided | 
          To be adopted | 
        
         
          | Signs | 
            | 
            | 
            | 
            | 
        
         
          | Warnings 
            / Directions | 
            | 
            | 
            | 
            | 
        
         
          | Electronic 
            panels with messages | 
            | 
            | 
            | 
            | 
        
         
          | Alarms | 
            | 
            | 
            | 
            | 
        
         
          | Door 
            bells  | 
            | 
            | 
            | 
            | 
        
         
          | Reverberation 
            effects  | 
            | 
            | 
            | 
            | 
        
         
          | Sign 
            language interpreters | 
            | 
            | 
            | 
            | 
        
         
          | Poor 
            light in auditoriums | 
            | 
            | 
            | 
            | 
        
         
          |  
            
           |