> Dark territories where there is no remote control or indications feeding back to Metrol and Voice Communication is the only means of control. I did not reali

> Dark territories where there is no remote control or indications feeding back to Metrol and Voice Communication is the only means of control. I did not realise just how much of the network is Dark -- for instance, everything beyond _Burnley_ (just 3 stations away from Flinders St) is Dark!