DESIGN OF EVACUATION EXITS IN ELLIPTICAL CORRIDOR TYPE BUILDINGS. CORRIDOR GEOMETRY

There is considered the possibility of solving the problem of choosing the optimal width of evacuation curved corridors, both sides of which are parts of an ellipse to further minimize the mixing of human flows (and, accordingly, prevent congestion when people move) during evacuation in case of fire or other emergency situations. Questions on the criterion for dividing corridors into wide and narrow, on the accuracy of Ramanujan formula and on the calculation of the ellipse arc length are analysed.