IFATCA Policy is:

When modifying airport infrastructure affecting ATM, local ATCOs shall be involved throughout its design, development and implementation.

Existing knowledge of human factors should be incorporated in design for new operational rooms and new ATC working positions and in modernisation of existing facilities.

Rules of ergonomics should be respected in the design of workplaces and optimum microclimate conditions should be obtained or maintained.

Great attention should be paid to the lighting conditions of working positions. Indirect light, adjustable by zones, similar to daylight provoking neither reflections nor dazzling is very important. The luminosity should be adjustable at each working place and light sources be cleaned regularly and replaced if necessary.

The physical working environment regarding control room temperature, lighting, relative humidity, adapted rest areas and facilities for eating and drinking shall be designed so as to facilitate night shift demands.