What is Neutral Section, please?

[Strat-tastic]

Usually very short, with approximately a carriage length or two between APC magnets. Some, such as the Maidenhead OHNS on the GWML, are of the long carrier wire type, which necessitate subsidiary signs underneath the OHLE entrance sign that say "LONG" to signify that the OHNS is longer than the usual OHNS, and is followed by an OHNS sign with a red cross going through them at the exit of the long OHNS.

Helpful, thanks