https://www.youtube.com/watch?v=x2AJJ7KYs-c
https://en.wikipedia.org/wiki/Blue_Line_(Calgary)
https://en.wikipedia.org/wiki/Westbrook_station_(Calgary)
"Up until the completion of the Red Line's Fish Creek–Lacombe station, all platforms for the CTrain were originally designed to service three-car trains, although there had been enough space allotted to allow four-car trains. Beginning in 2007 construction on station platforms began to expand the entire network to allow four-car trains, with the project being completed in 2017..." https://en.wikipedia.org/wiki/Blue_Line_(Calgary)#Capacity_upgrade
https://en.wikipedia.org/wiki/Blue_Line_(Calgary)#Stations_and_route
