The rail
10
Figure 2-6: Emergency end stop
2.2
Rail sections
Depending on its shape, the rail can be divided into various sections.
Figure 2-7: Inside and outside curves
Curves in the horizontal plane are called inside curves (2) and outside curves (1). To avoid confusion:
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Looking from the stairs, if you can see the inside of the curve then that is an inside curve.
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If you can see the outside of the curve then that is an outside curve.
In the vertical plane they are called bottom and top curves.
There are also curves in both the horizontal and the vertical plane. Such a curve is called a Spiral.
At the end of the rail there can be a vertical landing or a horizontal landing.
Figure 2-8: Spiral and vertical landing
