Details of signaling installed on Great Western Railroad, to improve operation of heavy traffic; tunnel is 4 m, 628 yd long; operating and signaling problems; advance section signaling; control circuits; operating rules; general arrangements of signalling shown in diagram.
Intermediate signalling in Severn Tunnel
Ry Gaz
Railway Gazette and Railway News ; 76 , n 25
1942
2 pages
Article (Journal)
English
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