Editing City Loop (section)

===Recent===
In 2021, seven-car [[High Capacity Metro Train]]s were introduced to the City Loop on the Caulfield tunnel.<ref name=":13">{{Cite web |last=Hui |first=Jin |date=24 February 2021 |title=A new direction for commuters |url=https://berwicknews.starcommunity.com.au/news/2021-02-24/a-new-direction-for-commuters/ |access-date=6 February 2023 |website=Berwick Star News |language=en-US}}</ref> As part of that, signalling infrastructure was altered and operations of the Caulfield loop were changed to run consistently anti-clockwise around the loop all-day, every day.<ref name=":13" /><ref>{{Cite web |title=The biggest timetable change in 40 years |url=https://www.metrotrains.com.au/the-biggest-timetable-change-in-40-years/ |access-date=6 February 2023 |website=www.metrotrains.com.au |language=en-US}}</ref>

In January 2023, the City Loop and its three stations were closed for two weeks to allow for major safety upgrades to the stations and tunnels.<ref>{{Cite web |last=Department of Transport |first=Victorian |date=2022 |title=City Loop upgrade powering ahead |url=https://transport.vic.gov.au/about/transport-news/news-archive/city-loop-upgrade-powering-ahead}}</ref> The works will upgrade smoke detection systems, extraction systems, fire detection, fire hydrants, CCTV, and intruder-detection systems.<ref name=":9"/> The upgrade was originally started under the [[Napthine Ministry|Napthine Liberal government]] in 2014 and was significantly delayed after the collapse of the contractor while works were underway.<ref name=":9">{{Cite web |last=Eddie |first=Rachel |date=7 May 2022 |title=City Loop summer standstill could derail recovery, says restaurant group |url=https://www.theage.com.au/politics/victoria/city-loop-summer-standstill-could-derail-recovery-says-restaurant-group-20220503-p5ai9t.html |access-date=28 January 2023 |website=The Age |language=en}}</ref> The cost ballooned from an estimated $43 million in 2014 to $469 million in 2023.<ref name=":9" />