Editing CTrain (section)

=== Four car trains ===
In late 2015 Calgary Transit began operating four-car LRT trains on the CTrain system. The lengthening of trains was done to alleviate overcrowding as the system was already carrying more than 300,000 passengers per day, and many trains were overcrowded. The lengthening of trains increased the maximum capacity of each train from 600 to 800 passengers, so when enough new LRT cars arrived to lengthen all trains to four cars, the upgrade increased the LRT system capacity by 33%. Since the platforms on the original stations were designed to only accommodate three-car trains, this required lengthening most of the platforms on the 45 stations on the system and building new electrical substations to power the longer trains. To operate the new four-car trains, the city ordered 63 new cars, although 28 of them were intended to replace the original U2 LRT cars, which have as many as 2.8 million miles on them and are approaching the end of their service lives. Many of the older stations were also worn out by high passenger traffic, and the platforms needed to be rebuilt anyway.<ref>{{cite web |date=November 13, 2015 |title=Calgary Transit Launches Four-Car Service Early |url=http://calgarymayor.ca/stories/calgary-transit-launches-four-car-train-service-early |access-date=May 7, 2016 |publisher=The City of Calgary}}</ref> Throughout the pandemic, service was reduced to three-car trains. However, as of December 19, 2022, four-car trains are back in service.<ref>{{Cite web |title=Calgary's Red Line LRT to return to four-car trains - Calgary {{!}} Globalnews.ca |url=https://globalnews.ca/news/9352413/calgarys-red-line-lrt-return-four-car-trains/ |access-date=2023-02-15 |website=Global News |language=en-US}}</ref>