SINGAPORE: The Land Transport Authority has awarded two contracts covering the installation of half-height platform screen doors at 36 elevated stations along the existing North-South and East-West MRT lines. This initiative forms part of the Land Transport Masterplan which was unveiled earlier this year (RG 3.08 p127).

ST Electronics has won a contract worth S$112m to supply the screens and associated works. These include the construction and refurbishment of equipment rooms, and the installation and upgrading of power supplies and environmental control systems.

Work will start immediately on the first three stations, Yishun, Jurong East and Pasir Ris, for completion by Q4 2009. Installation has to be carried out during non-revenue hours to minimise disruption to passengers. All 36 stations are due to be equipped by 2012.

The 1 500 mm high gates will be installed along the platform edge to improve safety and security on the network, which has experienced a rise in the number of track intrusions at elevated stations. This will increase operational efficiency by preventing service disruption.

ST Electronics and its partner Westinghouse Platform Screen Doors have already supplied the full-height PSDs on the North East Line, and are currently working on the Circle Line, the first phase of which is expected to open in June 2009.

The second contract worth S$13·9m has been awarded to Invensys subsidiary Westinghouse Brake & Signal Holdings, covering an upgrade to the existing signalling interface to synchronise the opening and closing of the train and screen doors. Having supplied the original signalling system on both MRT lines and the Changi Airport branch, Westinghouse is currently installing signalling on the Boon Lay Extension, which is due to be commissioned in early 2009.