Plans for a £200m scheme to ease railway congestion in Cardiff and the south Wales valleys have been revealed today.
Network Rail says its improvements to stations, lines and signalling equipment could double the rail capacity of the region by 2015.
A spokesperson for Network Rail said that by removing the rail-bottleneck more and longer trains would be able to travel between Cardiff and stations in the south Wales valleys, increasing rail capacity during rush hour by 600 seats.
900 trains already travel through the Cardiff area everyday, with the new plans seeking to increase services by four trains an hour.
Train wathcdog Passenger Focus has described plans as good news for rail travellers in Wales.
The scheme includes modernisation of the signalling infrastructure to be compatible with electrification and a simplification of the track layout at the Cardiff East Junction. Additional track will be laid on parts of the railway throughout the Cardiff and south Wales valley area
Network Rail say they will also create new platforms at Cardiff Central, Cardiff Queen Street, Barry, Tir-phil, Caerphilly and Pontypridd to accommodate more and longer trains, with improvments to accesibility also featuring in the plans.