DM.73
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Origin
DM.73 was a 4-aspect automatic signal commissioned at Swindon MAS Stage 1 on 14 November 1966[1]. At that stage it was supervised by Highworth Junction SB and was the last automatic on the Down Main in the newly-created track circuit block sections between there and Uffington SB.
| Previous Signal | Line | Line | Next Signal |
|---|---|---|---|
| DM.72 | Down Main | Down Main | HW.1 |
Supervision passed to Swindon Panel under Swindon MAS Stage 5 on 3rd March 1968.
| Previous Signal | Line | Line | Next Signal |
|---|---|---|---|
| DM.72 | Down Main | Down Main | SN.22 (/SN.4) |
Conversion to Controlled
The signal was planned to be moved 150 yards towards Swindon on 7 February 2000 as part of the South Marston commissioning works described in GWS.27. However, due to 'construction difficulties' the work did not take place.
Instead, DM.73 became a controlled signal, SN.998. This took place at 0645 on Sunday 11 June 2000, and the number DM.73 became disused.
Reincarnation
A new DM.73 was later installed in connection with the second attempt to commission the South Marston scheme in 2002.