**3.2. Accessibility at work for people with disabilities**

Accessibility means that a person with a disability can move around as he or she wants without any intermediary. Accessibility is the most important point that should be given importance in workplaces where people with disabilities are. Accessibility of the workplace is the independent completion of all phases between the door of the house and the start of work at the workplace. The barrier most frequently shown as an obstacle to work is a workstation that is inaccessible [7, 14].

The accessibility feature should also be considered parallel to the vertical area, also called the comfort zone. This area is the vertical field from the lowest level that a person can reach to the highest level that one can reach while standing. The limits set for the Turks in this regard are the upper reach limit of 115.6 mm (the small woman with the wheelchair) and the lowest reach limit of 665 mm (the long male using the seat handle) [44]. This area marks the location of many control buttons, such as power switches, door handles, sockets, and so on, which must be present at the workplace. Changes in this area in the business environment also prevent the disabled employee from being dependent to others [43, 45].

Optimum placement will not make anyone happy because the various places in the workplace can be used by people with many different characteristics. As a result, both horizontal and level of adjustability are always the best solutions. The height of the seat to be seated, the height of the counter, the height of the sinks, and the height of the cabinets to which the items of interest are to be placed must always be adjustable [14, 44, 52]. Özyörük and Kütük [52] reported that redesigning of working environment to increase work efficiency made positive changes and achievements were gained.
