According to PTB, a single supplier will be selected to provide trains and railway systems for all five lines.
This will be closely followed by an EOI for the civil works package for the initial 50km phase of the network, which includes 28 stations.
PTB has appointed a consortium of Ernst & Young, Ashurst, and Atkins to carry out the feasibility study and prepare the project for procurement.
The five-line metro will be financed as a public-private partnership (PPP), with the project being delivered by six contractors: a PPP systems integrator; four PPP infrastructure companies; and an operator. The network will eventually be 160km long with 69 stations.