Editing RMX (operating system) (section)

===Historical uses===
iRMX III on Intel Multibus hardware is used in the majority core systems on CLSCS the [[London Underground]] [[Central line (London Underground)|Central line]] signals control system was supplied by Westinghouse (now [[Invensys]]) and commissioned in the late 1990s. The Central line is an automatic train operation line. Automatic train protection is by trackside and train borne equipment that does not use iRMX. It is the automatic train supervision elements that use a mix of iRMX on Multibus, and [[Solaris (operating system)|Solaris]] on [[SPARC]] computers. 16 iRMX local site computers are distributed along the Central line together with 6 central iRMX computers at the control centre. All 22 iRMX computers are dual redundant. {{As of|2011}} iRMX CLSCS continues in full operation.{{fact|date=December 2018}}{{Update inline|date=December 2018}}

[[Oslo Metro]] uses a similar, although less complex, Westinghouse-supplied iRMX control system through the central [[Common Tunnel]] tracks. This was expected to be decommissioned in 2011.{{fact|date=December 2018}}{{Update inline|date=December 2018}}