The opening of the final stretch of the M1 metro line in the early hours of Friday marks a new chapter in the long history of Sydney’s train network.

The opening of the final stretch of the M1 metro line in the early hours of Friday marks a new chapter in the long history of Sydney’s train network.

Delayed by more than two years, the final stretch of the $30 billion M1 metro rail line was almost derailed on several occasions.

Delayed by more than two years, the final stretch of the $30 billion M1 metro rail line was almost derailed on several occasions.