Each device type may detect harsh behavior in slightly different ways, so please note these are only examples of how a device might calculate the result.
Devices often have configurable thresholds, but it requires custom device-level configuration to change the values, so if you feel you are experiencing too many harsh behavior events that are not based on real driver actions, please connect with our Support Team and we will review your device in detail.
Gravity
Some devices calculate acceleration, deceleration, and harsh turn behavior by milli-Gs force, where 1G (gravity) = 1000 milli-Gs, or free-fall acceleration.
A high performance car at a race track can rarely get above 900 milli-Gs on any axis, and an acceleration of 1000 milli-Gs corresponds to a 0-60mph time of 2.8 seconds. A family sedan rarely exceeds 400 milli-Gs on any axis (acceleration, braking, or cornering), but a Semi Truck on the other hand may have increased forces particularly based on the load it is carrying.
Some industry-standard harsh behavior values for Passenger cars/trucks are as follows:
- Acceleration event: 200 milli-gs
- Deceleration event: 250 milli-gs
- Harsh turn event: 300 milli-gs
- Crash detection event: 1000 milli-gs
Acceleration
Other devices may detect harsh behavior based on mathematical formulas for acceleration (cm/s/s or cm/s^2)
Examples include:
- Acceleration event: 360 cm/s/s
- Deceleration event: 540 cm/s/s
Crash Detection
Crash Detection events are almost always recorded in G or Milli-G forces, with a standard threshold being anywhere from 1 G (1,000 mG) to 2.5 G (2500 mG).