WA Government vows open book process during bidding on Morley-Ellenbrook Line under METRONET By Jamie Wade on December 17, 2019 Infrastructure Projects, Construction Projects, Rail, Building, Heavy/Civil Western Australia, Perth Western Australia's Public Transport Authority (PTA) said it will ensure where there are existing alliances there is an open... To read the rest of this article, please log in using the form below, or sign up now. Log In