AIS-140 devices are fitted because regulation requires them, and once fitted they generate a continuous stream of data that most fleets never use for anything beyond compliance. That data is worth mining, but it is worth being precise about what it contains. A VLTD is a location tracking device. It reports where a vehicle is, how fast it is moving, and whether the device itself is healthy. It does not report engine temperature, oil pressure, or fault codes, and any claim that location data alone predicts mechanical failure should be treated carefully. What it genuinely supports is a narrower and still useful set of inferences, and you can look at what your own devices expose in a free 30-minute session.
What AIS-140 Data Can and Cannot Tell You About Failure
An honest account of what a VLTD stream contains, what it legitimately supports, and what you would need to add for genuine failure prediction.
What the Device Actually Sends
Broadly, a VLTD stream is about position and movement. Exact fields vary by device and configuration, so confirm yours with the provider.
Position, speed, and heading at regular intervals, with timestamps.
Ignition state, which is the closest thing to a usage signal it carries.
Device health indicators such as power and battery status.
Emergency button activation, where the vehicle category requires it.
On some devices, accelerometer-derived events for harsh braking or acceleration.
What You Can Legitimately Infer
Ignition-on time compared against actual movement gives a usable estimate of how much running time produced no travel. Useful for fuel and for scheduling, and reasonably reliable.
Distance covered, gradient where terrain data is available, and cycle repetition indicate how hard a vehicle is working. This matters for tyres, brakes, and drivetrain intervals.
Where the device reports harsh braking or acceleration, sustained patterns point at brake and clutch wear earlier than a service interval would. A correlation rather than a diagnosis.
Distance and running time drive intervals more accurately than calendar dates, which is the most immediately valuable use of the data.
Often a device fault, occasionally a vehicle problem, and always worth investigating rather than ignoring.
Use the Data You Are Already Collecting
Utilisation, idle share, and usage-based scheduling from the devices compliance already required you to fit.
What It Cannot Do, and What Would
Location data cannot detect a failing injector, a cooling system losing efficiency, a bearing beginning to fail, or hydraulic pressure drifting out of range. Those require engine and system parameters that a VLTD does not carry, and no analysis of position data recovers them.
Genuine condition monitoring needs different inputs — OBD or CAN bus data where the vehicle supports it, OEM telematics on machines that provide it, oil analysis, vibration readings, and thermal checks. These sit alongside VLTD rather than being extracted from it.
There is also a coverage point worth checking. AIS-140 applies to specified categories of commercial vehicle, so your tippers and transport fleet may carry VLTDs while your excavators, dozers, and loaders do not. For off-road equipment, OEM telematics and inspection-captured readings are usually the practical sources.
Frequently Asked Questions
So can AIS-140 data predict breakdowns?
Not directly. It can tell you a vehicle is being worked harder than its schedule assumes, which lets you service it before failure, and that is a real and worthwhile outcome. It is prevention through better scheduling rather than prediction of a specific fault. You can see how that feeds a schedule on a call with our team.
Does our AIS-140 provider give us access to raw data?
It varies considerably. Some expose an API, others only a portal, and what is available under your contract is worth checking before planning anything that depends on it.
Is combining VLTD data with inspection records worthwhile?
This is where most of the value sits. Utilisation from the device plus defect history from inspection explains far more than either does alone, because one supplies the workload and the other the consequence.
What about our off-road equipment?
Generally outside AIS-140 scope. OEM telematics where fitted, and meter readings captured during inspection, do the same job for those machines.
Where should we start?
Utilisation and idle share, because both come straight from ignition and movement data and both change decisions immediately. Start with a free trial.
Use It for What It Is Good At
Take utilisation, idle share, and duty severity from your VLTD stream to drive service intervals by actual use, combine it with defect history for context, and add condition monitoring inputs where genuine fault prediction matters.
