Why a monthly rhythm helps
Daily alerts tell you what happened on a single trip. A monthly review shows you whether risk is building, holding steady or improving across the fleet. It is also often enough to act on before small patterns become habits, and far enough apart to see a trend rather than noise.
The five indicators below are a practical starting point. None of them is meaningful on its own, and the thresholds behind them should always be set for your vehicles, routes and operating context rather than copied from another fleet.
1. Speed exposure
Look beyond the count of speeding events. How long did vehicles spend over the threshold, by how much, and on what kind of road? A short excursion on a highway and a sustained one through a residential area carry very different risk.
2. Fatigue
Review driving hours, breaks taken and late-night or early-morning driving against your fatigue rules. If your fleet uses driver-monitoring technology, compare its events with the schedule data: repeated events on the same shift pattern often point to a planning problem, not just a driver problem.
3. Seatbelt compliance
Where seatbelt data is available, track the share of trips or driving time without a belt fastened. This is one of the simplest indicators to improve and one of the clearest signals of safety culture.
4. Harsh events
Harsh braking, acceleration and cornering can point to following distance, route familiarity, vehicle loading or time pressure. Calibrate sensitivity to the vehicle type — a loaded articulated truck and a light delivery vehicle should not share the same thresholds.
5. Kilometres driven
Exposure matters. Expressing the other indicators per distance driven, or per hour of driving, makes it fairer to compare vehicles, drivers and depots that do very different amounts of work.
Making the review useful
Keep the monthly review short and consistent:
- Use the same definitions and thresholds each month so trends are real.
- Separate data-quality issues (missing devices, gaps in data) from genuine risk.
- Agree one or two actions, each with an owner, and check them next month.
- Recalibrate thresholds deliberately, and record when and why you changed them.