1. The semaphores were replaced with colour light signals and electrical interlocking. 2. Abergynolwyn has colour light signals , which are operated from the blockpost. 3. All signals are multiple aspect colour light signals fitted with Train stop arms. 4. Finally, Coleraine was resignalled with three-aspect colour light signals in 1938. 5. Both signalboxes control a mix of semaphore and colour light signals with mechanically operated points. 6. The signal box was removed when semaphore signals were replaced by colour light signals c2010. 7. The narrow-gauge railway now has colour light signals as entrance and exit signals. 8. A new modernization programme began in 1982, still using mainly two aspect colour light signals . 9. In the UK, most filament-type colour light signals are equipped with lamps having two filaments. 10. The station was opened with automatic, three-aspect colour light signals which had been standard since 1924.
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