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Southern Railway - Selective Door Opening (SDO)

Hima-Sella Tracklink II Application: Selective Door Opening / Train Door Interlocking

Installation Area: Southern Railway, UK

Client: Porterbrook Leasing Company








Systems implemented by Hima-Sella not only provide benefits in cost and simple configuration but also provide improved safety for passengers and operating staff alike. Selective door opening and train door safety interlocking are just two applications which Hima-Sella has developed over the years.

Demand for this type of system has increased in line with passenger numbers over recent years, which ultimately sees an increasing number of trains come into the station being too long for the platforms they stand alongside.­­

Tracklink unit fitted to train

Selective Door Opening and Train Door Safety Interlocks work by only allowing the doors which are alongside a platform to open, with the remainder remaining locked. For applications such as train door selection and vehicle location, Hima-Sella offers the latest version of their established Tracklink system.

Developed in-house, Tracklink is based on inductive loop technology, comprising of a fixed transmitter unit and a transmitting beacon. Current versions now offer track to train communications at speed in addition to standstill communications as offered by the original Tracklink System. Loop health monitoring is via a hardwired healthy / fault signal back to the control room with the option of land line, radio or GSM links.

The benefits offered by these type of systems are reflected in maximum use of the platforms, leading to reduced train dwell times and an increase in both operator and passenger safety and has so far been adopted by companies such as Bombardier, NetworkRail and Porterbrook.

Please call our sales department on 0161 429 4500 or send an email to sales@hima-sella.co.uk if you require more technical information such as data sheets, or to discuss any application you may be considering. Download Hima-Sella's transport infrastructure & mobile solutions brochure here.

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