General Information
Basic details about the project and hazard identification.
Severity Determination
Calculate severity based on impact criteria.
Table S1: Impact Calculation
| SN | Impact Area | Score (0-5) | Impact Level | Weight | Weighted Score |
|---|---|---|---|---|---|
| Total Weighted Score: | 0 | ||||
Table S2: Impact Level Guide
| Level | Score |
|---|---|
| Very High | 5 |
| High | 4 |
| Moderate | 3 |
| Low | 2 |
| Negligible | 1 |
| Nil | 0 |
Table S3: Severity Matrix
| Score Range | Sev. | Category |
|---|---|---|
| 52 - 65 | A | Catastrophic |
| 39 - 51 | B | Hazardous |
| 26 - 38 | C | Major |
| 13 - 25 | D | Minor |
| 01 - 12 | E | Negligible |
Determination of Probability
Barrier quality, Strength value and robustness
Table 0: Probability Table
| Type of Barrier | Total BSV | Probability |
|---|---|---|
| Existing | 0 | -- |
| Resultant (Existing + New) | 0 | -- |
Table P1: Existing Barriers
| SN | Barrier | Effectiveness (3) | Cost Benefit (1) | Practicality (1) | Acceptability (1) | Enforceability (1) | Durability (1) | Disinclination (2) | Total BQV | Corr. BSV | Robustness | Remarks (Prev/Rec) | Include |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total BSV (Existing): | 0 | ||||||||||||
Table P2: New / Future Barriers
| SN | Barrier | Effectiveness (3) | Cost Benefit (1) | Practicality (1) | Acceptability (1) | Enforceability (1) | Durability (1) | Disinclination (2) | Total BQV | Corr. BSV | Robustness | Remarks (Prev/Rec) | Include |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total BSV (New): | 0 | ||||||||||||
Reference Tables
Table P3: Barrier Strength Value (BSV)
| Total BQV | BSV (Correlated) |
|---|---|
| 10 - 17 | 1 |
| 18 - 25 | 2 |
| 26 - 33 | 3 |
| 34 - 41 | 4 |
| 42 - 50 | 5 |
Table P4: Robustness
| BSV | Robustness |
|---|---|
| 1 | Poor |
| 2 | Fair |
| 3 | Good |
| 4 | Very Good |
| 5 | Excellent |
Probability Determination (Optimum CBSV-Likelihood Correlation)
Optimum Number of Barriers (ONB)
| Severity Value | Severity Descriptor | Optimum Number Barriers (ONB) |
|---|---|---|
| E | Negligible | 2 |
| D | Minor | 3 |
| C | Moderate | 4 |
| B | Major | 6 |
| A | Catastrophic | 8 |
Severity A
| Range | Val | Desc |
|---|---|---|
| 0-7 | 5 | Certain/Frequent |
| 8-15 | 4 | Likely/Occassional |
| 16-23 | 3 | Possible/Remote |
| 24-31 | 2 | Unlikely/Improbable |
| 32-40 | 1 | Exceptional/Extremely Improbable |
Severity B
| Range | Val | Desc |
|---|---|---|
| 0-5 | 5 | Certain/Frequent |
| 6-11 | 4 | Likely/Occassional |
| 12-17 | 3 | Possible/Remote |
| 18-23 | 2 | Unlikely/Improbable |
| 24-30 | 1 | Exceptional/Extremely Improbable |
Severity C
| Range | Val | Desc |
|---|---|---|
| 0-3 | 5 | Certain/Frequent |
| 4-7 | 4 | Likely/Occassional |
| 8-11 | 3 | Possible/Remote |
| 12-15 | 2 | Unlikely/Improbable |
| 16-20 | 1 | Exceptional/Extremely Improbable |
Severity D
| Range | Val | Desc |
|---|---|---|
| 0-2 | 5 | Certain/Frequent |
| 3-5 | 4 | Likely/Occassional |
| 6-8 | 3 | Possible/Remote |
| 9-11 | 2 | Unlikely/Improbable |
| 12-15 | 1 | Exceptional/Extremely Improbable |
Severity E
| Range | Val | Desc |
|---|---|---|
| 0-1 | 5 | Certain/Frequent |
| 2-3 | 4 | Likely/Occassional |
| 4-5 | 3 | Possible/Remote |
| 6-7 | 2 | Unlikely/Improbable |
| 8-10 | 1 | Exceptional/Extremely Improbable |
Risk Matrix
Composite Risk Index & Tolerability
Risk Calculation Summary
| Current Risk | Resultant Risk | |||
|---|---|---|---|---|
| Existing Preventive Control / Barriers | New Preventive Control / Barriers (NCB) | |||
| Barrier | BSV | Barrier | BSV | Action by whom and when |
| Total BSV | 0 | Total BSV (New) | 0 | |
| Grand Total BSV | 0 | |||
| Risk Probability | -- | Risk Probability | -- | |
| Risk Severity | -- | Risk Severity | -- | |
| Risk Index | -- | Risk Index | -- | |
| Risk Tolerability | -- | Risk Tolerability | -- | |
Acceptance of Risk
All the required processes of Safety Risk Management have been duly followed and the resultant risk is accepted.
| Department Head (All the risk assessment and mitigation processes have been duly followed and the resultant risk is acceptable) |
Name:
Signature:
|
| Director General (The resultant risk is acceptable) |
Name:
Signature:
|
Risk Matrix (Severity vs Probability)
Catastrophic
Hazardous
Major
Minor
Negligible
Safety Risk Tolerability Matrix
| Tolerability Description | Assessed Risk Index | Suggested Criteria |
|---|---|---|
| Intolerable Region | 5A, 5B, 5C, 4A, 4B, 3A | Unacceptable under the existing circumstances. |
| Tolerable Region | 5D, 5E, 4C, 4D, 4E, 3B, 3C, 3D, 2A, 2B, 2C, 1A | Acceptable based on risk mitigation. It may require management decision. |
| Acceptable Region | 3E, 2D, 2E, 1B, 1C, 1D, 1E | Acceptable |
Barrier Register
Tracking and Implementation Plan
1. Existing Preventive Controls/Barriers
| S.No. | Barrier Description | Hazard No. | SRM Date | Barrier Strength | Implementation Status | Action by whom and when | Follow-up date |
|---|
2. Existing Recovery Controls/Barriers
| S.No. | Barrier Description | Hazard No. | SRM Date | Barrier Strength | Implementation Status | Action by whom and when | Follow-up date |
|---|
3. New Preventive Controls/Barriers
| S.No. | Barrier Description | Hazard No. | SRM Date | Barrier Strength | Implementation Status | Action by whom and when | Follow-up date |
|---|
4. New Recovery Controls/Barriers
| S.No. | Barrier Description | Hazard No. | SRM Date | Barrier Strength | Implementation Status | Action by whom and when | Follow-up date |
|---|
Risk Register
Assessment Summary & Risk Reduction
| Hz. code | SRM Date | Description of Hazard | Consequence(s) | Existing Risk | Resultant Risk | Status | Follow up | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Severity | Probability | Risk Index | Risk Tolerability | Severity | Probability | Risk Index | Risk Tolerability | Open | Close/date | |||||
Preferences
Customize software settings and behaviors.
Export
If checked, Reference Tables (BSV Correlation, Robustness, Probability Determination) will be included in the exported DOCX file.
All exported DOCX pages will use the selected size and orientation. Tables will be formatted to fill the full page width.
Show Barrier Type
If checked, the barrier name will include the barrier type in italics, e.g. Barrier Name {Prev}, in the Risk Calculation Summary table.
User Instruction Manual
Professional Safety Risk Assessment (SRA) Tool - Version 1.0.0
1. Overview
The SRA Tool is a professional-grade application designed to facilitate the systematic identification, assessment, and mitigation of safety hazards. It follows standard aviation and industrial safety protocols to ensure rigorous risk management.
2. Phase 1: Hazard Identification
Go to the General tab and enter the key identifiers for your assessment:
- Hazard ID: A unique identifier (e.g., HZ-001).
- Hazard Name: A concise description of the safety concern.
3. Phase 2: Severity Assessment
Navigate to the Severity tab to evaluate the potential impact of the hazard.
- Evaluate the hazard across 7 impact areas including Public Safety, Worker Safety, and Asset Damage.
- Assign a score (0-5) for each area. The tool will automatically calculate the Severity Level (A-E).
4. Phase 3: Probability & Barrier Management
This phase determines the likelihood of hazard occurrence based on your control measures (Barriers).
Barrier Definition (Table P1 & P2)
- Table P1: List your Existing controls.
- Table P2: Propose New/Future controls to further reduce risk.
Inclusion & Remarks Logic
Set Include to "Yes" for barriers that should contribute to the risk reduction. Only included barriers affect the final Probability calculation.
Select a Remark (Preventive or Recovery) for each barrier. A barrier will only be synced to the Barrier Register if it is both Included ("Yes") and has a Remark assigned.
5. Phase 4: Risk Matrix & Tolerability
Visit the Risk Matrix tab to see the final assessment result.
- Composite Risk Index: A combination of Probability and Severity (e.g., 5A, 3C).
- Tolerability: View the color-coded status (Red: Intolerable, Yellow: Tolerable, Green: Acceptable).
- Risk Calculation Summary: A consolidated table showing exactly which barriers were included and their impact on the final score. You can enter specific Actions for New Controls here, which will sync directly to the Barrier Register.
6. Phase 5: Implementation & Tracking
Use the Barrier Register and Risk Register tabs to turn assessment into action.
- Sync: Use the "Sync" buttons to populate the registers. Existing data (Status, Action by, Follow-up date) is automatically preserved upon re-syncing as long as the Barrier Description remains unchanged.
- Tracking: Update implementation status, assign responsibilities, and set follow-up dates directly in the tables.
7. Preferences & Settings
Customize the behavior and output of the software via the Preferences tab.
- Export Reference Tables: Toggle the inclusion of supplementary tables (BSV Correlation, Robustness, Probability) in your DOCX export.
- Export Page Size & Orientation: Choose between A4 or A3 sizes, and Landscape or Portrait orientation for the final professional report.
- Show Barrier Type: When enabled, dynamically appends the barrier type (e.g., {Preventive}) to the barrier names in the Risk Calculation Summary.
8. Software Utilities
- Save/Load: Export your entire project as a
.srafile to continue work later. - DOCX Export: Generate a professional, aviation-grade Word document of your full assessment, formatted according to your selected preferences.
- Bow Tie Diagram: Access the external Bow Tie tool for advanced visual hazard analysis.
- Sample Data: Use "Fill Sample Data" to quickly see how the tool functions.