IP Signalling Shared Learning

This page has been created to house IP shared learning. Newer items of shared learning are displayed on the right hand side, older items and hyperlinks can be found in the index.

IP Signalling Discipline Shared Learning Index

Version 04/07/2019

 

Periodic Shared Learning Publications

Ref Number and Link Title Contents
19/01 January 2019 – June 2019 TC alterations

AWS WSF

Power Supply interruptions

Signal Head alignment

RCPL lock nuts

LX signage with OHLE

Signal Box lever circuits

Lightweight signal mechanical strength

Power supply enclosure

Slugs in Axle Counter (animal incursion)

APC and PACO magnets and balises

Audit good practice

18/02 March 2018 – December 2018 IP addressing

Soak testing

Computer based route setting

Permanent speed restriction AWS warning

Operating irregularity – data omission

IBJ bonding

Power supply source

Solid state object controller cards

Cross boundary data

Signal alignment

LX fail to raise

Clarity of responsibility – voice recorder

Crimp quality

18/01 July 2017 – February 2018 Waterloo derailment

ABCL strike in points

Signal aspect changes

Signal alignment

Track circuit – swarf contamination

Temporary Works: Interface Management

Access steps – embankment failure

 

 

Ref Number and Link Title Contents
17/01 January – June 2017 Equipment unsecured

CAD and VR models

LX obscured by OLE

SSI datalink diversity

TPWS complex approach

Control table missing aspect

Damaged plug coupler

Scheme plan clarity

Unintended consequences

 

 

Individual Shared Learning Publications

Ref Number and Link Title Content
029/19 FTNx Communications Failure Router mis-configured
028/18 Control Table Error Separate overlap track omitted
027/18 Selection of Suitable Circuit Protection Refresher on choosing circuit protective devices
026/17 Product Acceptance Guidance on the process to follow
025/17 Billingshurst MCB-OD Level Crossing Missing control revealed in perturbation
024/16

See v2

Streatham TVC789 – Data Error SSI data error with latch function
024/16 v2 Streatham TVC789 – Data Error SSI data error with latch function
023/16 Recoveries – Redundant Equipment, Cables, Wiring Recoveries affecting live equipment
022/16 Motts Lane – Design Integration Level crossing – ARS and manual route setting conflict
021/16 Watford Tunnel Location Tunnel loc struck by train
020/16 Polegate Axle Counter Positioning Error Axle counter head positioning error
019/16 Manchester East WestCAD System Software crash
018/16 Purley T1649 Points Copy and paste design error, mod by tester
017/16 Princes Risborough Swinging Overlap SSI data constructs
016/16 Manchester North Re-control – SSI Boundary Issues Route setting to interlocking boundary signals
Barton Lane AHB Non-Removal of 10 Second Axle Counter Delay Timer.
014/15

See v2

 

Non-Commissioned Equipment TPWS/AWS interventions and unshielded signals.
014/15 v2 Non-Commissioned Equipment TPWS/AWS interventions and unshielded signals.
013/15 Birmingham New Street laser survey Laser survey of infrastructure for signal sighting
012/15 Waterford commissioning -Wembley Fringe Interference on datalinks – incorrectly terminated Furse unit
011/15 Signal post collapse. Signal post collapse due to corrosion
009/14 Split Pin Security Missing split pin on RCPL
008/14 Lindridge Farm (linked to RAIB report 11/2013) User Worked Crossing incident, VDU screen
006/14 Dorman LED GPLS Re-controlled Dorman Non-Proved LED Ground Position Light Signals
004/13 Bromfield Level crossing circuit alterations WSF
003/13 Immingham Mechanical signal arm proving
002/13 See v2 Stockley SSI data Stockley Junction – Post Investigation Findings
002/13v2 Stockley SSI data Stockley Junction – Post Investigation Findings
001/13 SSI Data Assurance SSI data complexity and accuracy

 

 

 

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