Sentinel Activity Chart

Owned by Jonathan Gruber
Last updated: 2019-05-08 by Lincoln McGregor-Smith (Unlicensed)
3 min read

How to identify the information shown on the Sentinel 4 Activity Chart

Event Type DescriptionDisplayed as

Work Period
 

Periods of work are shown in green. To view the details of a period of work, hover over it and you will be shown the total duration as well as the Start and Stop times and event types. 
Rest PeriodPeriods of rest are shown in blue. To view the details of a period of rest, hover over it and you will be shown the total duration as well as the Start and Stop times and event types. 
Night RestRest taken between the hours of 10pm and 8am is considered to be Night Rest. Where a rest break is taken during these hours, this will be shown in the activity chart in the form of a grey background with white dots. Hover over the grey area to view details of the Night Rest. 
Lead in / Lead out

If you are viewing a 24 hour period starting at 00:00 and the drivers status was last change during the previous day, the current state will be displayed in the appropriate colour, but will be streaked with diagonal lines. This identifies a lead-in. The same applies if the driver's state at the end of the period you are viewing continues past the end of the viewed period. This is known as a lead-out.

Whether resting or working, the time of the event which put the driver into that state can be determined by hovering over the streaked area.

7 hour breakA rest break of 7 hours or more is considered a major rest break and is used to calculate the drivers available hours during the 24 hour period immediately following the major rest break. The end of a 7 hour rest break is shown in the Sentinel 4 Activity Chart as a bright green line with an arrow on top.
24 hour breakA rest break at least 24 hours is considered a major rest break and is used to calculate the drivers available hours during the longer running fatigue rules. The end of a 24 hour rest break is shown in the Sentinel 4 Activity Chart as a bold purple line line with an arrow on top.
Predicted ViolationPredicted violations are shaded in yellow. They indicate which violations will occur if the driver stays in their current status without resting. The darker the shade of yellow, the more rules will have been breached.
Actual ViolationViolations are shaded in red. They indicate which violations have occurred. The darker the shade of red, the more rules have been breached.





Event TypeDescriptionDisplayed As