Editing Network Rail (section)

===Rolling stock===
{{more citations needed section|date=September 2023}}
Network Rail operates a large variety of DMUs, locomotives and rolling stock to perform safety checks and maintenance (this fleet is not to be confused with the combined rolling stock assets of [[Rail Delivery Group]] members who work in combination as ''[[National Rail]]''). As well as the multiple units and locomotives, Network Rail own and operate a large stock of rolling stock for particular testing duties and track maintenance. Network Rail also hire freight locomotives from various freight operators including [[DB Cargo UK]], [[Freightliner Group|Freightliner]], [[Colas Rail]] and [[GB Railfreight]] amongst others to operate engineers' trains in support of maintenance and renewal work. Network Rail's Infrastructure Monitoring fleet of test trains is operated by Colas Rail, primarily using locomotives from Colas' and Network Rail's own fleets,<ref name = "fine record2016">{{cite magazine |url = https://www.railmagazine.com/news/rail-features/a-fine-track-record |title = A fine track record |magazine = Rail Magazine |first = Richard |last = Clinnick |date = 21 November 2016}}</ref> but have also used locomotives hired from other companies such as [[Direct Rail Services]], GB Railfreight and [[Europhoenix]] as required.
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File:2009 at Fairwater crane 96715.JPG|Breakdown crane
File:Switch and Crossing Rail Grinder DR79261 and DR79271.jpg|[[Railgrinder]] for switches and crossings
File:Tamworth railway station MMB 27 43062.jpg|[[New Measurement Train]]
File:DR 98931 Tonbridge to Tonbridge (22476971424).jpg|Railhead treatment train
File:Didcot - Network Rail DR80211 (66005).JPG|[[Stoneblower]] at {{stnlnk|Didcot}}
File:Class 37 97302.jpg|[[British Rail Class 97|Class 97/3]] Locomotive for [[ERTMS in Great Britain|ERTMS]] Testing purposes.
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