 In the 1940s, 1970s, and 2000s steps were taken to rationalise the gauge chaos and connect the mainland capital cities mentioned above with standard gauge .Since 1970, when the direct standard gauge line across the country was completed, the passenger train on the Sydney to Perth line has been called the "Indian Pacific".The proposed Iron Boomerang would connect iron in the Pilbara with coal in Queensland, so achieving loaded operations in both directions.