According to current requirements for creating an accessible environment, all buildings and institutions must have labeled doors to reduce the risk of injury. This applies to both entrance and interior sashes. If doors are made transparent or partially transparent, markings must be placed on each door. The same applies to other structures made of translucent materials: partitions, high curbs, etc. This requirement is due to the fact that citizens with impaired vision are not always able to recognize an obstacle that merges with the surrounding background.
Means used for marking
According to legal requirements, the middle part of transparent doors and other structures must be marked with stickers in the form of a circle or triangle. Their color is not regulated, but for greater safety should choose bright shades, visible even in low light. In addition, full framing of the dangerous element with bright tape on the perimeter is also possible. This method is used in conjunction with the first and is recommended for institutions frequently visited by visually impaired people, for example - medical or social orientation.
Door Marking Requirements
The application of identification signs that are clearly visible to people with disabilities on door leaves is regulated by paragraph 1.6.1 of SP 59.13330.2016 "Accessibility of buildings and structures for people with low mobility" (Order of the Ministry of Construction of Russia from November 14, 2016 № 798/pr). According to this order, all transparent panels inside and between buildings must be made of impact-resistant glass or other unbreakable materials. In their central part and at a height of 90 cm (but no less) and up to 140 cm (but no more) should be placed rectangles or circles of contrasting color with the surrounding objects. The dimensions of the former shall be not less than 10 cm for the short side and not less than 20 cm for the long side. The diameter of the circle must be between 10 and 20 cm. All identification signs shall be in the form of stickers and shall be securely attached to the surface.
It is worth noting that in addition to these requirements, it is recommended to be guided by common practice. For example, most visually impaired people are used to stickers in the form of circles (most often bright yellow). For this reason, the use of rectangles (and even more so - having soft shades) for marking dangerous places is not always able to achieve the intended result. Completely transparent structures that are fixed in place (e.g., various partitions) are not only recommended to be marked with stickers, but also to be completely framed with tape.