 With Cardiff Central and Queen Street as the hubs, it connects Cardiff's northern, southern and western suburbs to the city centre.There are eight lines that connect Central and Queen Street stations to 20 smaller stations in the city, 26 in the wider urban area (including Taffs Well, Penarth and Dinas Powys) and more than 60 in the South Wales valleys and the Vale of Glamorgan.The council is investigating converting the Cardiff City Line, Coryton Line and Butetown Branch Line into light rail lines and extending them in the near future.