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CTC Modification (Sri Lanka)

This project saw the modification of multiple stations on the Coastal Line between Colombo and Matara. Seven stations had Vital Relay Interlocking introduced, and a further sixteen stations were outfitted with VPI, Centralised Traffic Control (CTC) and Train Dispatching System (TDS). A CTC system with a PcVue platform was built at Maradana station in Colombo to handle normal operation of the station interlocking systems along the Kalutara North to Katugoda line. The total railway line under CTC control now consists of sixteen stations. The CTC system is connected to each VPI system via two multi-drop serial lines (glass fibre connections). In addition to normal operations such as route setting, the CTC system has capabilities for train number indication and tracking, as well as logging, reporting and diagnostic functions.