may grant financial assistance to any State on such terms and conditions as the Parliament thinks fit"). The Australian Government has full responsibility for railways in the federal territories, although the Northern Territory's railway is now owned and operated by the private AustralAsia Rail Corporation and the only railway in the Australian Capital Territory, the Canberra-Queanbeyan railway is now operated by NSW TrainLink. In 1910, a conference of Railway commissioners chose to be the standard gauge. Over the decades, many plans were floated to fix the break of gauge. These failed, mainly because they were too ambitious and proposed to convert all lines, even lines of little economic value. Creating a standard gauge network In the 20th century, the different state rail systems became more integrated, initially creating more breaks of gauge. In 1917, the Federal Government's standard gauge Trans-Australian Railway was completed between Kalgoorlie and Port Augusta. However, this required a break of gauge at Kalgoorlie to reach Perth and breaks of gauge at both Port Augusta and Terowie to reach Adelaide. In 1927, the last section of the Sydney–Broken Hill line was completed between Trida and Menindee meeting the South Australian Railways line at a break of gauge and requiring a further break of gauge at Terowie to reach Adelaide. In 1932 the first progress in reducing the gauge conflict was made with the completion of the standard gauge Sydney–Brisbane railway with the opening of a bridge at Grafton. The first standard gauge line in South Australia, Trans-Australian Railway, was completed in 1917 between Port Augusta and Kalgoorlie, requiring break-of-gauges at Terowie, Port Augusta and Kalgoorlie to reach Perth. This line was extended to Port Pirie Junction in 1937 and the broad gauge line from Adelaide to Redhill was extended to Port Pirie, removing one break-of gauge. In the 1950s, a parliamentary committee chaired by William Wentworth recommended a much more modest and affordable plan to gauge convert the three main missing links: Albury to Melbourne standard gauge track added parallel to broad gauge to complete the Sydney–Melbourne railway. Kalgoorlie to Perth – narrow gauge converted to standard gauge. Broken Hill to Port Pirie – narrow gauge converted to standard. In 1962 the Albury to Melbourne standard gauge line was opened, completing the Sydney–Melbourne railway. In 1966, a new mixed standard and narrow gauge Eastern Railway route was completed through the Avon Valley, east of Perth. In 1968