The next stations to the east are at Pilning in South Gloucestershire (through the Severn Tunnel) and nearby Caldicot (on the Gloucester line).

[1][4][5] The junction system consisted of a five-platform station (four through, and an up facing bay), a railway depot, and a major marshalling yard.

There are no rail connections between the platforms east of the station as high-speed 70 miles per hour (110 km/h) crossovers have been provided to the west.

[10] In December 2022, the ORR approved Grand Union to commence a new service from Paddington to Carmarthen in partnership with Spanish rail operator Renfe, for which a fleet of new bi-mode trains will be used.

Coal was also worked by block trains directly from the colliery to the power station and no longer required marshalling.

This is often explained as being due to the Miners' Strike and the closure of deep coal in South Wales, but in fact the decline in small-unit freight was much more significant.

In its heyday, the engine shed employed large numbers of railwaymen, which in turn encouraged the growth of the adjoining village of Rogiet.

The main engine shed was located to the north east of the railway station, while the goods yards were to the west.

The land remains empty and derelict although it was used as a storage depot for new cars during the 1970s, and more recently as a works yard during the electrification of the South Wales main line.

The goods yards were located on both sides of the running lines, one for each direction, and used hump shunting to sort individual wagons into trains.