inception, and built and expanded the Willowbrook facility onsite to maintain the expanding fleet. GO Transit built a second maintenance facility covering in Whitby to accommodate additional trains for its upcoming Regional Express Rail project, and was completed by the end of 2017. A limited number of old cab cars, which resembled standard coaches with the addition of a cab at the end are still operating, with 15 old cab cars being rebuilt and reintroduced for expanded GO service. Ownership and crews GO has always owned its locomotives and coaches, but its trackage used to be owned entirely by Canada's two major commercial railways: the large majority by the Canadian National Railway (CN) and the remainder (the current Milton line) by Canadian Pacific Railway (CP). In 1988, as part of expanding service east of Pickering, GO built its first section of self-owned purpose-built trackage. From 1998 until 2009, GO owned only six per cent of the railway trackage on which it operated. Starting in 2009, Metrolinx incrementally acquired further trackage from the two commercial railways in order to improve GO service. As of 2014, Metrolinx has complete ownership of the Barrie, Stouffville and Lakeshore East lines, and a majority of the Lakeshore West, Richmond Hill, and Kitchener lines. CP still owns most of the Milton line. This puts Metrolinx ownership at 69 per cent of GO Transit's trackage. Each train runs with a three-person crew: two operators control the train from the cab at the front end of the train and handle related operations, while a third crew member is the Customer Service Ambassador. Stationed in a designated car in the middle of each train, the Customer Service Ambassador operates the doors and wheelchair ramp, makes station stop announcements, and is dedicated to assisting customers on board. Alstom Transport is responsible for providing train operations, taking over from Bombardier Transportation in 2021. GO trains achieve on-time performance of approximately 95 per cent, and a refund will be provided if a train is more than 15 minutes late, with some conditions. Bus GO Bus service consists of a combination of routes, many of which stand in for train service when it is not operating and/or which extend the reach of train service to communities beyond their terminal. Other GO buses are independent of rail services, such as the Highway 407 series of routes, which provides an orbital-type service that encircles Toronto