How to Interpret Speed Events

Owned by Jonathan Gruber (Unlicensed)
Last updated: 2019-12-19 by Val Kennedy
3 min read


Data fields

After running a Speed Event Management Report, each event will contain the following information:

DeviceShows the device that generated the speed event. This will be either an IVU, Qube or iFace screen
VehicleIndicates the vehicle that the aforementioned device is assigned to in NextGen
FleetFleet that the vehicle is a member of
DriverIf you have driver login enabled and your driver was logged in at the time of the incident, then their name will be displayed in this column
BranchBranch that the driver is a member of
Start LocationLocation of the Speed Event 
StartTime at which the speed event started
EndTime at which the speed event finished
Threshold TypeThis refers to which type of speed event has been triggered: 
  • SignPosted - based off road-specific maps data. Please note that this option is only applicable to iFaces, not standalone IVUs or Qubes. 
  • Config - a set speed dictated by our default settings our chosen by the Transport Operator upon request. You have the option of choosing a Config threshold for all of your vehicles in NextGen, specific fleets or even individual vehicles. Please contact Support if you would like to configure this setting. 
Speed Events can be generated using either of these threshold types, or both (if both are selected, the lowest speed will always be used. For example, if the Config threshold is set at 100 km/h, but your vehicle drives at 95 km/h in a 90 zone, a SignPosted event will be generated). 
Speed Limit (km/h)The limit that was breached 
Max Speed (km/h)The highest actual speed that was recorded for this particular event 
Duration (h:m:s)The length of the event
End TypeThe reason why the event ended. 
  • Normal - The vehicle went back below the threshold
  • InvalidSpd - We had invalid GPS 
  • ThrshChange - if the speed threshold changed (for example, Threshold type was SignPosted and the vehicle moved from an 80 km/h zone to a 90km/h zone) 
View Event

Click on the iconto view more details related to a particular Speed Event

Event map

After clicking on the View Event iconyou will see the location of the event on a map. 

Green = Start of the trip | Orange = Middle of the trip | Red = End of the trip

Speed graph

 If your vehicle has an IVU or standalone iFace

Below the map, you will see a speed vs altitude chart. This is particularly useful in understanding the driver's behaviour. Most of the time you will see the altitude decrease as the speed increases, indicating that the vehicle was speeding up as it came off a hill. 

If your vehicle is fitted with an IVU, the speed event will most likely be generated from this unit and not the iFace. 


 If your vehicle has a Qube

Below the map, you will see a speed chart. This is particularly useful in understanding the driver's behaviour. 


Event data

NextGen also displays second-by-second speed information at the bottom of the page. This gives you a clear view of the rate at which the speed increases, as well as valuable information regarding the quality of the GPS signal during the speed event. 

At times, invalid speeds may display. However, the report will provide GPS values to allow a user to determine the validity of an event. 

A valid speed event is typically indicated by a high number of satellites (4+) in the NSAT column, and a low number (<4.0) in the HDOP column.


EXAMPLE POOR SPEED EVENT