Severn Tunnel Jcn. Middle

Technical drawing numbers
S1215/1Record of amendments
S1215/2Locking sketch
S1215/3Mechanical locking table
S1215/4Detection table
S1215/5Electrical control table
S1215/6Dog chart
S1215/7Lever leads
S1215/12Signal box diagram

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Severn Tunnel Jcn East  ——  This box   ——  Severn Tunnel Jcn West

The diagram below is a low-resolution version to indicate the content: a full-resolution 'pdf' file will be published on a CD-ROM entitled 'Great Western Railway Signal Box Diagrams - South Wales'. For availability and ordering information, click on the image below.

This page last updated on 8th October 2010.