On a rail transport system, signalling control is the process by which control is exercised over train movements by way of railway signals and block systems to ensure that trains operate safely, over the correct route and to the proper timetable. Signalling control was originally exercised via a decentralised network of control points that were known by a variety of names including signal box, interlocking tower and signal cabin. Currently these decentralised systems are being consolidated into wide scale signalling centres or dispatch offices. Whatever the form, signalling control provides an interface between the human signal operator and the lineside signalling equipment. The technical apparatus used to control switches (points), signals and block systems is called interlocking.
In railway signalling, an interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junctions or crossings. In North America, a set of signalling appliances and tracks interlocked together are sometimes collectively referred to as an interlocking plant or just as an interlocking. An interlocking system is designed so that it is impossible to display a signal to proceed unless the route to be used is proven safe.
Keyham railway station is a suburban station in the city of Plymouth, Devon, England. It is 249 miles 25 chains (401.2 km) from London Paddington via Box and Plymouth Millbay. The station is close to the Devonport dockyard.
Crediton railway station is a railway station serving the town of Crediton in Devon, England. It is 7 miles 76 chains (12.8 km) from Exeter Central at milepost 179.25 from London Waterloo.
Helensburgh Central railway station serves the town of Helensburgh on the north shore of the Firth of Clyde, near Glasgow, Scotland. The station is a terminus on the North Clyde Line, sited 24 miles 31 chains (39.2 km) from Glasgow Queen Street, measured via Singer and Maryhill. Passenger services are operated by ScotRail on behalf of Strathclyde Partnership for Transport.
Dundee railway station serves the city of Dundee on the east coast of Scotland. It is situated on the northern, non-electrified section of the East Coast Main Line, 59+1⁄4 miles (95.4 km) northeast of Edinburgh. Dundee is the tenth busiest station in Scotland. In January 2014, the former main station building was demolished to make way for a new building as part of the Dundee Waterfront Project which opened on 9 July 2018.
Haslemere railway station is on the Portsmouth Direct Line, serving the town of Haslemere, Surrey, England. It is 42 miles 79 chains (69.2 km) down the line from London Waterloo, measured via Woking.
Blantyre railway station serves the burgh of Blantyre, near Hamilton in South Lanarkshire, Scotland. It is located on the Argyle Line, 14 km south east of Glasgow Central railway station. Passenger services are provided by ScotRail Trains on behalf of Strathclyde Partnership for Transport.
Breich railway station is a rural railway station serving the village of Breich in West Lothian, Scotland. It is located on the Shotts Line, 21 miles (34 km) west of Edinburgh Waverley towards Glasgow Central. It was the sixth-least-used station in the UK until 2018-19 and was the second-least-used in Scotland, after Barry Links as well as being the least used station in West Lothian.
Hartwood railway station is a railway station serving Hartwood in North Lanarkshire, Scotland. It is on the Shotts Line, 19 miles (31 km) east of Glasgow Central towards Edinburgh Waverley. The station has two platforms, connected by a stairway footbridge. It is managed by ScotRail.
Copplestone railway station is on the Tarka Line serving the village of Copplestone in Devon, England. It is on the Tarka Line to Barnstaple, 14 miles 37 chains (23.3 km) from Exeter Central at milepost 185.75 from London Waterloo. The station and trains are operated by Great Western Railway.
Morchard Road railway station is located in the village of Down St Mary in Devon, England. It is named after the village of Morchard Bishop which lies a few miles to the north-east. It is on the Tarka Line to Barnstaple, 16 miles 08 chains (25.9 km) from Exeter Central at milepost 187.5 from London Waterloo. The station and trains are operated by Great Western Railway.
The Maidstone line is a railway line between Swanley, Maidstone and Ashford in Kent, England.
Craigendoran railway station is a railway station serving Craigendoran, east of Helensburgh, Scotland. The station is managed by ScotRail, who operate all services at the station, and is located on the North Clyde Line between Helensburgh Central and Cardross, 23 miles 18 chains (37.4 km) west of Glasgow Queen Street, measured via Singer and Maryhill. West Highland Line trains used to call here but no longer do following the closure of the upper platforms.
Kirkcaldy railway station is a railway station in the town of Kirkcaldy, Fife, Scotland. The station is managed by ScotRail and is on the Fife Circle Line and principal East Coast Main Line, 26 miles (42 km) north east of Edinburgh Waverley. British Transport Police maintain a small office on Platform 1.
Chilworth railway station serves the village of Chilworth, Surrey, England. The station, and all trains serving it, are operated by the Great Western Railway. It is on the North Downs Line, 39 miles 15 chains measured from London Charing Cross via Redhill.
Mechanical railway signalling installations rely on lever frames for their operation to interlock the signals, track locks and points to allow the safe operation of trains in the area the signals control. Usually located in the signal box, the levers are operated either by the signalman or the pointsman.
Manuel Junction is a railway junction near the village of Whitecross, Falkirk, Scotland. It is the terminus of the Bo'ness and Kinneil Railway and forms a connection between it and the Glasgow–Edinburgh via Falkirk line.
The Liverpool Street signal box is a Grade II listed disused signal box at Liverpool Street tube station in London.
Oil terminals are key facilities for the import, export, storage, blending, transfer and distribution of oil and petroleum products. Many terminals are located at coastal sites, such as Teesside and the lower Thames, to allow the offloading and loading of coastal shipping. Inland terminals, located around major cities, such as Birmingham and Manchester, facilitate the distribution of products to local industrial and commercial users. Many terminals have road tanker loading equipment for local distribution of products such as petrol, diesel, and heating oil. The terminals are connected through a network of underground pipelines to enable the transfer of oil and refined products across Britain.
