Barrier-free signposting for public spaces
According to DIN 18040-1, the legislator demands barrier-free access in public buildings. Since November 2014, DIN 18040-3 has applied to public traffic and open spaces. With regard to guidance and orientation systems, this means that all information must also be perceptible to people with visual impairments, the blind or people with limited mobility, so that independent orientation and information is guaranteed indoors and outdoors. To achieve this, lettering and symbols must not only be large and rich in contrast, but also tactile, i.e. tactile by means of pyramid writing or relief representations. Requirements for orientation systems in publicly accessible buildings are contained in DIN Technical Report 142. Plans and signs should be placed at a suitable height and desk signs with tactile plans should be accessible to wheelchair users. Illuminated information boards promote recognition in different lighting conditions.