Engineering, Freight Rail, Research & Development Steel sleeper system trialled on Goldfields freight line Arc Infrastructure has trialled a new style of sleeper on a freight line running from Leonora to Kalgoorlie in the Goldfields region of Western Australia. The line is undergoing $2.3 million of improvements,Read More Staff WriterJuly 12, 2019, 4:06 pmJuly 12, 2019