Page 596 - IRSEM_Main Book

S No Term Description/Meaning in SEM Relevant paras
After application of this type of resetting, axle counter will continue to show ‘Occupied’ until 17.7.4(a), 17.7.5 (b)
Reset –
122 one train movement is carried out through the failed section and ‘In Count’ is matched with
Preparatory
‘Out Count’.
Annexure: 18-A4 II
Supervisory A section of track between two Detection Points completely covering more than one track (B),(D),
123 Track Section section and is used to automatically reset failed Track sections under its jurisdiction, when it
Annexure:21-A1 (C),
& Reset is safe to do so without manual intervention. This is also called Auto-Reset.
(D)

17.5.6 (c), 19.8.12 (f),
124 Risk Combination of expected frequency of loss and the expected degree of severity of that loss.
21.1.11(c)
7.1.14(c),7.4.5,
Means the line governed by one or more signals and includes connections, if any, used by a
7.4.6(a),7.4.12,
125 Running Line train when entering or leaving a station or when passing through a station or between
12.5.6(d), 12.26.3(a)
stations.
Annexure: 7-A1
Means a train, which has started under an authority to proceed and has not completed its 15.2.2(e),
126 Running Train
journey. Annexure: 7-A1
It is a Rail which has developed rust formation on its surface and does not cause De- 17.3.13
127 Rusty Rail Energisation of Track relay as required, when a Train/Light Engine/Motor Trolley is occupying
it, thus causing an unsafe side failure.
9.1.1(a), 9.2.1, 9.2.4,
128 Safety Freedom from unacceptable risk.
9.2.5
Safety Positive declaration intended to give confidence that Risk Process and behaviors are being Annexure: G1(2.2)
129
Assurance managed to acceptable levels through appropriate measures.
Documented demonstration that the product (eg. a system, subsystem or equipment)
130 Safety Case
complies with the specified safety requirements.
Safety 21.4.5(b),
131 Function whose sole purpose is to ensure safety.
Function Annexure: G1(4.4)
132 Safety Ability of a safety related system to achieve its required safety functions under all the stated 13.1.3(c), 21.4.1(b),
Integrity conditions within a stated operational environment and within a stated duration. Annexure: G1(4.8)

Annexure: G4: Glossary of Technical Terms for Signal Engineering Manual Page 526 of 535