In the realm of railway maintenance and safety, few documents are as pivotal as the Rt3181 form, a comprehensive tool devised to ensure the smooth operation of line blockages. This form, becoming effective on December 5, 2015, took over from its predecessor, signaling a step forward in the detailed accounting for various safety and operational procedures linked to railway line management. It lays down the groundwork for how individuals in roles such as IWA (Individual Working Alone), COSS (Controller of Site Safety), PC (Person in Charge), and SWL (Safe Work Leader) plan and communicate line blockages. This involves specifying the nature and timings of the activities to be undertaken, assessing their impact on line safety, and detailing the required safety measures, ranging from signaling adjustments to the deployment of detonators for additional protection. Additionally, the form meticulously guides the user through granting authority for blockages, managing level crossings, and coordinating with various safety roles, all to ensure that the line blockage does not compromise the safety and efficiency of railway operations. By encompassing a vast array of considerations—from general arrangements and blocking the line to granular details on protection measures and permissions for shared blockage—the Rt3181 form serves as a critical instrument in maintaining the integrity and safety of railway operations.
| Question | Answer |
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| Form Name | Rt3181 Form |
| Form Length | 2 pages |
| Fillable? | No |
| Fillable fields | 0 |
| Avg. time to fill out | 30 sec |
| Other names | COSS, CCTV, RT3181, EPR |
Uncontrolled When Printed
Document comes into force on 05/12/2015
Supersedes Form RT3181 Iss
IWA/COSS/PC/SWL Line Blockage Form |
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RT3181 |
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December 2015 (Side 1 of 2) |
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Section1 |
General arrangements |
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WON/GZAC No. |
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IWA |
COSS |
PC |
SWL |
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Circle your role |
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(if applicable) |
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Your name |
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Name of signaller |
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Panel/workstation |
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Phone number |
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Signal box |
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Employer |
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Time needed for the |
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hrs |
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mins |
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activity |
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Will the work affect the safety of the line?
Yes/No
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Circle the type of additional |
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Signalling |
EPR |
Detonator |
Not required |
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protection |
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disconnection |
protection |
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Section2 |
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Blocking the line |
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Line to be blocked
Between (signal/block
marker/points)
and (signal/block
marker/points)
Protecting signal(s)/block
marker(s)
Go to page 2 and complete -
Appendix |
if the line blockage includes |
Appendix |
if additional protection |
Appendix |
if sharing protection |
Appendix |
if there is a change of |
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A |
any level crossings |
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B |
is required |
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C |
D |
COSS/PC/SWL |
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Tick the box when agreed that details are correct |
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Section3 |
Granting authority |
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Blockage |
Authority number |
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Blockage taken at |
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Call back time |
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Blockage given up at |
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number |
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Time |
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1
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10
Uncontrolled When Printed
Document comes into force on 05/12/2015
Supersedes Form RT3181 Iss
IWA/COSS/PC/SWL Line Blockage Form |
RT3181 |
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December 2015 (Side 2 of 2) |
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AppendixA |
Level crossing arrangements |
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Level crossing |
Supervising signal box |
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Method |
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A |
Q |
E |
N |
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A |
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E |
N |
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A |
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E |
N |
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In the method column, circle -
Level crossing |
Supervising signal box |
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Method |
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A |
Q |
E |
N |
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A |
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N |
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A |
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E |
N |
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A
if an attendant is required throughout the blockage (atAHBC, CCTV, OD or RC crossings)
Q
if an attendant is required some of the time (atAHBC, CCTV, OD or RC crossings)
E
if the signals/sirens/bells are switched off (atABCL orAOCL crossings)
N
if there is normal working at the crossing
AppendixB Additional protection
Detonator Protection
Detonators placed at signal or beyond points
Signalling Disconnection
Name of signalling technician
Disconnected signalling equipment
Token
Time token issued
Time token returned
EPR
Has the signaller applied EPR? |
Yes/No |
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These track circuits are occupied by
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AppendixC |
Permission to share blockage |
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Name of |
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Signature |
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IWA/COSS/SWL confirms |
Signature |
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IWA/COSS/SWL |
Phone number |
IWA/COSS/SWL |
Authority given to share |
work is completed and Line |
IWA/COSS/SWL |
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and Employer |
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(if present) |
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Line Blockage |
Blockage protection is no |
(if present) |
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longer needed |
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Date |
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Time |
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Date |
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Time |
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Date |
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Time |
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Date |
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Time |
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AppendixD |
Change of COSS/PC/SWL |
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Name of new COSS/PC/SWL
Phone number
Employer
Time Date