This is not the first time that an exit sign design has been given a symbol representing a person using a wheelchair. There have previously been some sign manufacturers who have also identified this need for accessible exit signage, but generally these are simply re-coloured and the International Symbol of Access or a wheelchair symbol is added. This section discusses these designs and considers how effective they are in identifying an accessible exit.

• The European Style Wheelchair on Exit Signs
• An Ambiguous Exit Sign Design