The other figure that doesnt make any sense is the time period involved , 4 
years.
This equates to a track laying figure of only 0.6 km/day which would have to 
be the worst in the world.
Newport - Geelong was laid at an average of 2 km/day , and figures of 4 km / 
day are quite achievable.
In then early days of the building of the Mt Newman Line in Nth WA , 7 km / 
day was achieved.
A number of other costs normally related to the building of new lines dont 
have to be taken into account for this line , namely the route has been 
completely already surveyed, the route is easy by any engineering standards , 
ie no significant tunnels or bridges are needed.
In short , I just wonder whether the figure is deliberately high to make the 
line appear uneconomic and where did the figure come from in the first place.
cheers
Maurie Daly