How do I Interpret Near-miss data?

The key metrics to understand a near-miss are G-Force, X Acceleration (accelerating and braking), and Y Acceleration (steering).

When you select a near-miss data point in the Road Intelligence, data about that near-miss is displayed in a dialogue box at the top right hand side of the map.

The key metrics to understand a near-miss are G-Force, X Acceleration (accelerating and braking), and Y Acceleration (steering):

What is G-Force

The G-Force is a unit of acceleration; It measures the change in car speed. If a vehicle has 0.0 as a G-Force reading, it is going at a constant speed.

The higher the G-Force, the more violent and sudden the action. However, higher G-Forces do not always indicate a crash, death, or injury has occurred; the data should always be reviewed in relation to the road context under which the reading was identified.

You can filter near-misses by their G-force using the G-force filter tool in the Visuals section of the menu bar.

What is X Acceleration (Acceleration and Braking)

X-axis data indicates acceleration or deceleration.

  • An x-axis value below 0 indicates that a vehicle is braking or decelerating.
  • An x-axis value above 0 indicates that a vehicle is accelerating.

The severity of the X-axis reading at either end of the scale indicates how intense the acceleration or deceleration was.

What is Y Acceleration (steering)

Y-axis data indicates left or right steering.

  • A y-axis value above 0 indicates a vehicle has made a right-hand turn or movement.
  • A y-axis value value below 0 indicates a vehicle has made a left-hand turn or movement.

Similar to X-axis values, the severity of the Y-axis reading at either end of the scale indicates how intense the right-hand or left-hand steering was.