By then the zigzag had become an increasingly inefficient bottleneck owing to the growing traffic on the line between Lithgow and Sydney, and it was eventually abandoned in 1910 and replaced by the so-called Ten-Tunnel Deviation, which is still very busy today.
The zigzag had become an increasingly inefficient bottleneck owing to the growing traffic on the line between Lithgow and Sydney. This was by then. It was eventually abandoned in 1910. It was eventually replaced by the so-called Ten-Tunnel Deviation. Tunnel Deviation is still very busy today.