A

Avg speed

Average speed. The average speed during a device’s report interval, which is calculated using the distance traveled (beginning and ending odometer values) and time (update period).

B

Backfill

The process of populating daily summarization data prior to a metric’s creation date.

C

Cluster

Represents more than one vehicle in a similar location on a map. Clusters (shown as circles) provide enhanced clarity when viewing a bird’s eye view of a map with a large number of vehicles.

D

Diagnostics

Diagnostic data is an additional feature. Diagnostic data varies by vehicle make/model/year. If your device supports it and your vehicle reports it (we support J1708, J1939, and OBD-II protocols when available), additional diagnostic data is reported directly from the vehicle’s engine control unit (ECU), which may include engine speed (RPMs), fuel level, fuel level remaining,…

Drift

GPS drift refers to the magnitude of inaccuracy of a device’s positional data (e.g., the number of meters within Circular Error Probability).

G

G-force

Gravitational force. 1 G is equal to the force of gravity at the Earth’s surface, which is 9.8 meters per second. DOT defines harsh (not dangerous) braking as .45 g incidents (your average NYC cab driver). Typical rapid acceleration is typically a little lower (.30g).

Google Places

Includes place information on a variety of categories, such as: establishments, prominent points of interest, geographic locations, and more.

Group

Used to organize your vehicles using classifications that make sense to your business. Groups allow you to easily filter the map, as well as reports and alerts, by isolating a subset of vehicles in your fleet.

I

Inst speed

Instantaneous speed. The last speed value sampled during a device’s report interval. For example, if a device’s report interval is 2 minutes, the Instantaneous speed is the last data point obtained of the 480 data points collected during the update period (4 times per second x 2 minutes).

M

Max speed

Maximum speed. The highest speed value sampled during a device’s report interval. For example, if a device’s report interval is 2 minutes, the Max Speed is the highest data point of the 480 data points collected during the update period (4 times per second x 2 minutes).

N

Normalization

Normalization allows you to more accurately compare data among multiple vehicles (drivers), typically related to event violations. Normalization options include Per Day, Per 100 Miles, and Per Runtime Hour. For example, Joe may have 20 total safety events and Sam may have 200 total safety events in a given month. Without normalization, Sam looks like…

O

Out of range

A message that may indicate the vehicle’s GPS device is not reporting data. Possible causes may be faulty installation or an obstruction of signal (e.g., parking garage).

Overlapping trip

A trip (engine on to engine off) that occurs during an overnight/midnight threshold.

P

Posted speed

The maximum lawful vehicle speed (in multiples of 5 mph) for a particular location as displayed on a regulatory sign.

PTO

Power Take-Off. A device used on a vehicle to provide power to an attachment or separate system (hydraulic or mechanical).

R

Runtime

Total vehicle hours.

S

Snap to roads

The snap to roads option allows you to alter the representation of the trails. Vehicle locations are typically provided every two minutes. Although we do not know the exact route the vehicle took between the time gap, the snap to roads option can generate a reasonable representation of the actual path using highly sophisticated mathematical…

Speed limit disclaimer

Many speed limits are 5-10 MPH different in either direction, and the data is not guaranteed. As much information as is available via reports in order to reach a reasonable conclusion when it comes to speeding offenses, but it is strongly encouraged that you to weigh all the facts before discussing speeding violations with drivers.

Speed sample

Each vehicle is typically on a 2-minute report interval. During that time, the device is sampling speeds usually at 4 times per second. These speed samples are used to calculate max speed, inst speed, and avg speed.

Stop note

Allows drivers to add information about various stops (e.g., “Customer was not home for delivery.”). Drivers can send notes to 477-477 via SMS if their number is associated with the vehicle. You can view/edit/add individual stop notes within the History tab, and you can also see stop notes applicable reports (i.e., Stop Notes Report).

Sustained speed

Occurs when two or more consecutive instantaneous speed points are above the speeding threshold.

T

Timezone

When setting up an alert with time conditions, the alert uses the timezone preference set in your user profile.

Tracking data

In addition to ignition status, data is tracked for the following: Stopped and/or over idling threshold, out of range, PTO engaged, vehicle speed (max and average speeds between updates) GPS location (lat/long, reverse geo-coded address, and/or landmark if applicable), direction (heading), odometer, and more. If the device has been programmed to track diagnostics, additional engine…

Trip

Defined as the period between ignition “on” and ignition “off.”

Trip summarization

A 24-hour period (midnight to midnight) based on the timezone setting of the master user on the account.

Trip summary identifiers

System identifers that summarize a trip based on Days Utilized, Trips, Idle Time, Distance, and Engine Hours.