Зданевич, В. А. and Кундрат, Т. М. and Літніцький, С. І. and Пугачов, Є. В. and Zdanevych, V. A. and Kundrat, T. M. and Litnitskyi, S. I. and Puhachov, Ye. V. (2020) УМОВИ ВИДИМОСТІ В ЛЕКЦІЙНІЙ АУДИТОРІЇ № 673. Вісник Національного університету водного господарства та природокористування (1(89)). pp. 142-151.

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Abstract

Проведено обмірні роботи в аудиторії № 673 і проаналізовано умови видимості в ній. Встановлено, що взаємне розміщення місць для глядачів і крейдяної дошки не забезпечують виконання нормативних вимог щодо видимості. Запропоновано заходи для покращення видимості в аудиторії і більш раціонального розташування в плані робочих місць.

Title in English

VISIBILITY CONDITIONS IN LECTURE HALL № 673

English abstract

Measurement work was conducted in lecture hall № 673 and the conditions of visibility in it were analyzed. It has been established that the mutual arrangement of seats for spectators and the chalk board does not ensure compliance with regulatory visibility requirements. The parameters of the space-planning solution of the lecture hall are analyzed according to the standardized requirements; they amount to 10 positions in the presented table. The area of the boards is less than the minimum required area. The height of the lower edge of the boards above the standard limits the area of the boards. The distance between the backs of adjacent rows is less than the standard value of 0.9 m. This solution made it possible to arrange a larger number of rows and reduce the rise of the rows. This arrangement of the rows in the lecture hall creates for the spectators of the next row that part of the plane of the audience board is obscured by the viewer of the previous row. This overshadow is estimated by the height of the shadow on the multimedia or chalk board, which is created by the head of the viewer of the previous row. The height of the viewer's crown above eye level is equal to the anthropometric excess (0.12 m). To determine the height of the shadow, we find the heights of the points of intersection of the rays directed from the monocular eye of the viewer of the next row to the crown of the viewer of the previous row. The distance of the dots above the bottom edge of the board is the height of the shadow. The height of the shadow in real conditions turned out to be higher than the normalized one. The calculation results are presented in the figures. So, the visibility conditions in the audience need to be improved. The best option is the calculated one, and at the same time more expensive, is to change the heights of rows to the calculated values. Namely, the calculated values of the placement of the rows on the cylindrical surface of least rise. Another option is to have a higher podium. The higher podium will increase the height of the focal point on the lower edge of the boards and improve visibility. The podium should be wider than the multimedia or chalk boards for the safe work of the lecturer.

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