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Train Protection Warning System TPWS Fitments SELECTION OF SITES FOR TPWS FITMENT 1. First job in the design process is therefore to assess whether TPWS is required to be fitted at a signal or not. 2. NR/SP/SIG/10137 – “TPWS – Selection of Signals and Other Locations for Provision of Track Sub System”. 3. NR/SP/SIG/10138 […]
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Train Protection Warning System OSS Fitment Whether OSS is required at Signal? There are 6 main conditions under which an OSS is not required at a signal: 1. The Safe Overrun Distance is adequate. 2. The signal is a platform starter at a terminal or turn round platform with speeds generally below 25 mph. […]
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