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Institution of Railway Signal Engineers
(Hong Kong Section)

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 IRSE(HK) Newsletter > News
 Issue 06 @ March 2010 

Fouling Point

Y F Sung
Secretary, IRSE(HK)

The location on two converging tracks to which trains may run safely on both lines without coming into contact with each other.

Figure 1 Fouling Point

For example:

Fouling point 3.816m =
Width of train (3.312m) + Dynamic throw (0.200m) + Central throw (0.142m) +
End throw (0.162m)

Some railway operators have their own designed figures due to different type of vehicles and environment.

(Reference to Railtrack)

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