Etihad Rail, the developer and operator of the UAE's national railway network, has issued invitations to tender for the first three contracts in the development of stage two of the rail network. The three invitations to tender, which were issued to all pre-qualified companies, are for contracts covering the design and build of new lines, including the lines between Ruwais and Ghweifat (137km), Liwa Junction and Al Ain (190km), as well as for the railway integration and systems contract, the company said in