I was unable to find an existing thread because the search function isn't working! I can only assume that there was in fact a thread about this, given how unbelievable it is. I somehow missed this story until now. The story of the new NSW intercity trains being too wide. I just can't find any information on how this incompetent mistake occurred. Anyone know?

The new IU trains were ordered for the entire network knowing there is an issue with the tunnels to Litgow and that they will be fixed.

Once complete the entire IU electrified network will have a universal fleet to operate anywhere on the network.

The widening of the loading gauge has been ongoing for decades, this will conclude this work.

The new IU trains were ordered for the entire network knowing there is an issue with the tunnels to Litgow and that they will be fixed.

Once complete the entire IU electrified network will have a universal fleet to operate anywhere on the network.

The widening of the loading gauge has been ongoing for decades, this will conclude this work.

I agree. The same work was done to widen the tunnels on the Northern and South Coast Lines and modify station platforms to accommodate the Oscars, so it makes sense to do the same for the Western Line to allow for a standard fleet.  It's a bit of a beat-up.

The new IU trains were ordered for the entire network knowing there is an issue with the tunnels to Litgow and that they will be fixed.

Once complete the entire IU electrified network will have a universal fleet to operate anywhere on the network.

The widening of the loading gauge has been ongoing for decades, this will conclude this work.

I agree. The same work was done to widen the tunnels on the Northern and South Coast Lines and modify station platforms to accommodate the Oscars, so it makes sense to do the same for the Western Line to allow for a standard fleet.  It's a bit of a beat-up.

It was not an "incompetent mistake" but a planned outcome to reduce the number of rollingstock outlines to one making one universal fleet that can go anywhere on the network.

This is a very desirable outcome.

Asked and answered. Locked.