The aggregate statistics of the yearly, monthly, and individual monthly weather downtime displayed for each logistics unit.
The calculation considers the time the vessel has bad weather divided by the total time the vessel is available for work.
- For CTV, SOV, and Helicopter, the available time is when the vessel is within calendar availability and inside its work shift.
- For large vessel types using processes, e.g. the HLV, the available time is when the vessel is actively trying to do work. So if the HLV is currently in port without any work orders assigned, it will not count as available time.
For example, the following values are given for a period:
- Available hours: 360
- Bad weather hours: 47
Then can be calculated:
47 / 360 = 13.05 % weather downtime for this period
Both the dashboard graphs and the downloadable CSV-files exist in three different versions:
- Yearly: Values for each year in the simulation
- Aggregated monthly: Values for each month. If multiple years are simulated, this will be an aggregation over e.g. all Januaries.
- Monthly: Values for each individual month in the simulation
Example files can be seen at the bottom of the page.
The dashboard graphs show the results corresponding to the p-value selected in the top of the output page.
Description about the output:
| Cell | Description |
|---|---|
| Column A | Displays the logistic name. |
| Column B | Displays the period. This can be year or month depending on the file. |
| Column C | Displays the average value for the weather downtime. |
| Column D | Displays the P10 value for the weather downtime. |
| Column E | Displays the P20 value for the weather downtime. |
| Column F | Displays the P30 value for the weather downtime. |
| Column G | Displays the P40 value for the weather downtime. |
| Column H | Displays the P50 value for the weather downtime. |
| Column I | Displays the P60 value for the weather downtime. |
| Column J | Displays the P70 value for the weather downtime. |
| Column K | Displays the P80 value for the weather downtime. |
| Column L | Displays the P90 value for the weather downtime. |
| Column M | Displays the minimum value between the different P-values. |
| Column N | Displays the maximum value between the different P-values. |
| Column O | Displays the standard deviation. You can read more about the standard deviation on the Wikipedia page. |
| Column P | Displays the minimum confidence interval (read more about confidence interval here). |
| Column Q | Displays the maximum confidence interval (read more about confidence interval here). |