The electrification of railway lines from Cardiff to Swansea, and from the capital into the Valleys, would mean train services become faster and more frequent, according to lobbyists. Monday morning passengers waiting at Caerphilly Station told us about their priorities for better rail travel.
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Philip Thomas was a 10-year-old pupil at Pantglas Junior School in Aberfan when a coal tip collapsed and slid downhill.
ITV News speaks to Jeff Edwards - who was eight years old when he became the last survivor to be pulled from the rubble.
Until 21st October 1966, Aberfan was a place that most of the world had never heard of.