Metro North West Line

The Metro North West Line is a rapid transit rail line in Sydney, New South Wales, Australia. The first and currently the only line on the Sydney Metro network, it commenced operation on 26 May 2019, running between Tallawong and Chatswood.

Construction
The current section completed in May 2019 under the Sydney Metro Northwest project involved the construction of an entirely new line between Tallawong and Epping, along with the conversion of the Epping to Chatswood railway line which previously operated under suburban Sydney Trains services. The second stage, the Sydney Metro City & Southwest, is currently under construction and involves extending this line from Chatswood to Bankstown, similarly involving a combination of constructing a new line from Chatswood to Sydenham and converting a section of the Bankstown railway line from Sydenham to Bankstown, which currently operates as part of the suburban T3 Bankstown Line under Sydney Trains. When open, the whole line will be known as the M1 Metro North West & Bankstown Line.

Service
Services on the line are operated by Metro Trains Sydney, a joint venture between the MTR Corporation, John Holland and UGL Rail. Services take 37 minutes to traverse the current 13 stations from end to end, at a frequency at each station of every four minutes during peak hours, every ten minutes in the off peak and every thirty minutes on Sunday to Thursday nights. Upon initial opening, the line previously operated at a frequency at each station of every five minutes during peak hours.

North West Night Bus
In the first six months of operations, regular metro services on the line were supplemented by a late night bus service known as the North West Night Bus, with 13 stops in close proximity to these stations. The bus service operated from Sunday to Wednesday nights after about 9.30 pm in both directions, filling in for final metro services at 10.05 pm from Chatswood and 9.25 pm from Tallawong, charging metro fares and operating at a frequency of every ten minutes. This service was temporary and was withdrawn six months later on 5 November 2019, when the metro reached full operations. The bus service was jointly operated by Transdev NSW and Hillsbus, both of whom previously jointly operated the Station Link services between September 2018 and May 2019.