Map of G.W. Signalboxeshttp://www.svrsig.org/gwmap/GWMap.htm
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| Sxxxx number | Signal Box name | View on map square | Other information including SRS diagram number |
| S1523 | Bridgend East | Map CW182 SS908797 | SRS diagram D424 |
| S1524 | Bridgend Middle | Map CV182 SS907800 | SRS diagram D424 |
| S1516 | Bryn-y-Gwynon | Map DB184 SS984827 | SRS diagram D106 |
| Bryncethin Junction | Map CX185 SS930839 | SRS diagram not available | |
| Coity South | Map CV182 SS908806 | SRS diagram S900 | |
| S1584 | Cowbridge Road Crossing | Map DF183 ST037824 | SRS diagram not available |
| S1557 | Cowbridge Road Junction | Map CW181 SS913790 | SRS diagram J90 (c.1923) |
| S1556 | Ewenny | Map CW179 SS901769 | SRS diagram D496 |
| S1515 | Llanharan Colliery | Map DC184 SS996830 | SRS diagram D106 |
| S1513 | Llanharan East | Map DE184 ST008829 | SRS diagram D351 |
| S1514 | Llanharan West | Map DC184 ST004830 | SRS diagram D351 |
| S1511 | Llantrisant East | Map DF183 ST033816 | SRS diagram not available |
| S1512 | Llantrisant West | Map DE184 ST029819 | SRS diagram S934 |
| Llantrisant Branch | Map DF183 ST033817 | SRS diagram not available | |
| S1590 | Llantrisant Common Junction | Map DF185 ST027848 | SRS diagram not available |
| S1510 | Miskin Crossing | Map DG182 ST056797 | SRS diagram D350 |
| S1585 | Mwyndy Junction | Map DF183 ST034822 | SRS diagram not available |
| S1518 | Pencoed East | Map DA183 SS959815 | SRS diagram D269 |
| S1519 | Pencoed West | Map CZ183 SS952805 | SRS diagram D269 |
| S1521 | Tremains East | Map CY182 SS933796 | SRS diagram P185 |
| S1522 | Tremains West | Map CW182 SS918793 | SRS diagram P185 |
| S1599 | Ynysmaerdy North | Map DF185 ST033843 | SRS diagram not available |
| S1588 | Ynysmaerdy South | Map DF184 ST034833 | SRS diagram not available |
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