Calculator Inputs
Use the engineering scales consistently. Most scoring fields use 1 for low and 5 for severe, except control quality fields where 5 is best.
Plotly Graph Preview
This preview uses the example dataset below. After you submit the form, the graph will move above the calculator form with your results.
Example Data Table
| Distance (km) | Trips/Month | Cargo Value | Likelihood | Security | Weather | Control Quality | Inherent Risk | Residual Risk | Risk Band |
|---|---|---|---|---|---|---|---|---|---|
| 680.00 | 14.00 | 175,000.00 | 4.00/5 | 4.00/5 | 3.00/5 | 3.33/5 | 58.04 | 35.21 | Moderate |
Formula Used
Distance Factor = clamp(Route Distance / 400, 1, 5)
Frequency Factor = clamp(Trips per Month / 6, 1, 5)
Value Factor = clamp(Cargo Value / 50,000, 1, 5)
Control Quality = average(Vehicle Condition, Compliance Readiness, Emergency Readiness)
Control Gap = 5 - Control Quality
Exposure Index = average(Likelihood, Security Threat, Weather Severity, Driver Fatigue, Distance Factor, Frequency Factor)
Consequence Index = (People × 0.30) + (Asset × 0.20) + (Environment × 0.15) + (Schedule × 0.20) + (Value Factor × 0.15)
Inherent Risk Score = ((Exposure × 0.45) + (Consequence × 0.35) + (Control Gap × 0.20)) × 20
Residual Reduction = min(70%, (((Control Quality - 1) / 4) × 25%) + (Mitigation Effectiveness × 45%))
Residual Risk Score = Inherent Risk × (1 - Residual Reduction)
This structure gives a weighted engineering view of transport exposure, consequences, and the strength of current controls.
How to Use This Calculator
- Enter the route distance, shipment frequency, and cargo value.
- Rate likelihood, safety impacts, weather severity, and security threat on a 1 to 5 scale.
- Score control quality honestly for vehicle condition, compliance readiness, and emergency readiness.
- Estimate mitigation effectiveness as a percentage based on escorts, tracking, route planning, barriers, and response measures.
- Press the calculate button to see residual risk, inherent risk, control quality, key driver, and review guidance above the form.
- Use the chart and result metrics to compare route scenarios or justify stronger controls before dispatch.
- Download CSV for spreadsheets and PDF for reporting or audit support.
Frequently Asked Questions
1. What does inherent risk mean here?
Inherent risk is the raw transport risk before mitigation benefits are applied. It reflects exposure, consequence, and the gap created by weak operational controls.
2. What is residual risk?
Residual risk is the remaining risk after accounting for mitigation effectiveness and control quality. It is often the best number for go or no-go transport decisions.
3. Why are some inputs scored from 1 to 5?
A 1 to 5 engineering scale is simple, fast, and consistent. It also helps compare routes when detailed failure data is limited or unavailable.
4. Can I use this for hazardous materials?
Yes, but you should adjust scoring discipline and internal thresholds. Hazardous cargo often needs stricter acceptance limits, specialist controls, and regulatory review.
5. Why is cargo value included?
Cargo value acts as a consequence multiplier. Expensive or mission-critical loads increase financial loss, theft attractiveness, and business interruption severity.
6. Does better vehicle condition reduce risk?
Yes. Higher vehicle condition improves control quality, which reduces the control gap and supports lower residual risk when all other factors stay constant.
7. How often should I reassess transport risk?
Reassess whenever routes, drivers, cargo type, weather profile, security conditions, or compliance obligations change. High and critical scores should be reviewed before every dispatch.
8. Can this calculator support route comparison?
Yes. Run each route with the same scoring method, then compare residual scores, control gaps, and key drivers to identify the safer transport option.