The demands on the drainage systems are very high. For example, the channels have to withstand extreme dynamic forces and suction effects from racing vehicles – especially in the 27 bends, which are a record-breaking number. A subsequent widening of some of the curves additionally increases the enormous loads on the drainage lines. These are often at right angles or diagonally to the ideal line and are driven over. The same applies to the pit exit, a maximum speed area of the track. This puts enormous stress on channels and gratings. Parts flying through the air, from small screws to complete gratings, would mean a great risk of accidents and injuries for drivers and spectators. This risk had to be avoided at all costs and taken into account in the selection of a suitable drainage system.
