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[[File: Arley_Signal_Box_20150426.jpg |thumb|300px|right| Arley Signal Boxin 2015]][[File:16998936 10209018257838938 3707299790826753434 n.jpg|thumb|300px|right|Arley in 1960 with the original signal box (Photo: Geoffrey Skelsey)]]
A signal box situated at [[Arley]] station, working to [[Bewdley North signal box|Bewdley North]] and [[Highley signal box|Highley]] using [[Single line working using tokens|ETT regulations]] in both directions. It can be switched out if trains are not required to cross.
== History ==
Before preservation, the original signal box was a mirror image of the still-extant signal box at Highley, and had a 14-lever frame with no switching out facility. <ref>1960 Sectional Appendix for the WR Birmingham Traffic District</ref> Other minor changes include two stacked disc signals at the toe of the yard points as per normal GWR practice, and a bracket for entry to the yard at the up home signal. A diagram is available [http://www.signalbox.org/diagrams.php?id=669 on the signalbox.org website].
A major factor in the [http://en.wikipedia.org/wiki/Abermule_train_collision collision at Abermule in 1921] was that the tablet instruments which controlled the single line working were installed in the station building rather than the signal box, a practice condemned by the inspecting officer Colonel Pringle.<ref>Red for Danger, L.T.C. Rolt</ref> Despite this, the token instruments at Arley were installed in the station booking office, only being moved to the signal box by the SVR in preservation.<ref>[[Bibliography#Books | Marshall (1989), pp. 134-135.]]</ref>
[[File:Arley box diagram.gif|800px]]
== List of levers Levers and Lever Leads ==<gallery>File:Arley levers 1 to 6.jpg | Levers 1 to 6File:Arley levers 10 to 15.jpg | Levers 10 to 15File:Arley levers 14 to 19.jpg | Levers 14 to 19File:Arley levers 23 to 27.jpg | Levers 23 to 27</gallery>
{| class="wikitable"
