The accident , also known as the Hopkinstown rail disaster or the Coke Ovens collision , occurred Coming_to_be at 9:48 am , when the 09:10 passenger train from Treherbert to Cardiff , heading Motion towards Pontypridd and carrying Carry_goods about 100 people , rounded Motion the bend at Gyfeillion Lower signal box with a clear signal ahead .

The inquest heard Perception_active conflicting reports from signalmen Hutchings of the Gyfeillion Lower and Quick of the Rhondda Cutting Junction , the other signal box in control of the stretch of line where the accident took place Process_start .