2026-11-04 · 7 min read · GeoChantier team · Canalytics Group

Construction Equipment GPS Tracking: A Practical Guide for Contractors

Construction equipment GPS tracking puts a device on each machine that reports where it is, when its engine runs, how long it idles and how much fuel it burns. The device is either the manufacturer's built-in telematics or an aftermarket GPS unit. A good setup sends both kinds into one platform, draws geofences around each work zone, and turns the raw feed into cost per machine, per day and per work package.

What does equipment GPS tracking actually measure?

Four data streams carry most of the value on a site:

• Location and route history: latitude, longitude and timestamp, which give you which zone a machine is in, how far it travels and whether it left the site after hours.
• Engine hours: the cumulative engine-on counter, which drives maintenance intervals, rental billing and hourly cost.
• Idle hours: engine running with no work being done. Komatsu reports that a study of its telematics data found average idle time of nearly 40%, and that recent data shows it remains relatively high. Caterpillar notes idle can reach 40 to 50% of running time.
• Fuel: total litres consumed and litres over the last 24 hours, read from the engine controller where available.

Manufacturer systems add diagnostic and fault codes. Cat Product Link, for example, reports working and idle hours, fuel consumption, engine start and stop times, and event codes from the engine, hydraulic and transmission systems.

GPS tracker or OEM telematics: which one do you need?

On a mixed fleet the answer is usually both. Recent machines from major brands ship with telematics that read the engine directly. Older units, rented equipment, compactors, generators and trailers often need an aftermarket box.

What is ISO 15143-3 and why does it matter for mixed fleets?

ISO 15143-3, known in the field as AEMP 2.0, defines how a telematics provider's server delivers machine status data to customer applications. According to AEM, it specifies the request records and the responses. It was developed by the Association of Equipment Management Professionals and the Association of Equipment Manufacturers and approved by ISO on July 21, 2016. The current edition is ISO/TS 15143-3:2020, a Technical Specification. The fields include location, operating hours, fuel usage, distance travelled, caution codes, idle time and diagnostic codes.

In practice, you ask each dealer to enable the ISO 15143-3 feed for your machines and give the credentials to one platform. You then see excavators, dozers and haul trucks from different brands on the same map with the same hour and fuel definitions.

How do geofences work on a construction site?

A geofence is a polygon drawn on the map: a borrow pit, a loading area, a laydown yard, a section of road under construction. The platform logs every entry and exit with a timestamp. That gives you three practical uses:

1. Security: an alert when a machine leaves the site perimeter outside working hours.
2. Cost allocation: hours spent inside the "PK 12 to PK 15 earthworks" polygon are charged to that work package.
3. Cycle analysis: for haul trucks, time inside the loading zone versus the dump zone shows queuing and travel time per cycle.

Draw geofences to match your cost breakdown structure. If your estimate tracks earthworks, sub-base and drainage separately, your polygons should too.

How do you choose and roll out tracking on a site in Morocco or Canada?

Check coverage before buying hardware

Most units transmit over cellular networks. In Canada, a federal briefing note citing CRTC data puts LTE coverage at 99.7% of the population and 98.2% in rural areas, but only 87.2% of major roads and highways at the end of 2021. Quarries, mines and remote road projects in Morocco's interior or in northern Canada can sit outside coverage. Caterpillar offers low-Earth-orbit satellite hardware for isolated sites; for aftermarket units, confirm the device buffers data and uploads it when the signal returns.

Rollout checklist

What are the pitfalls?

Data ownership and access

Read the telematics terms before you build a process on top of them. Komatsu's European telematics terms, for instance, let the customer use telematics data for any lawful purpose, but Komatsu decides the format, frequency and volume of data made available, the customer must notify Komatsu before sharing with third parties, and Komatsu may keep the data for up to 10 years after termination. Other brands have their own terms. Ask each one how often its API refreshes and what happens to your history if you sell the machine.

Operator privacy in Quebec: Law 25

Equipment tracking becomes personal information once you can link a position to the operator. Quebec's private sector act, as amended by Bill 64 (Law 25), adds article 8.1: anyone collecting personal information with a technology that can identify, locate or profile a person must inform them beforehand of its use and of the means offered to activate those functions (Gazette officielle). A privacy impact assessment is required for projects to acquire or develop an information system involving personal information, and administrative monetary penalties can reach $10 million or 2% of worldwide turnover. On employee geolocation, the CAI considers that useful information is not necessarily necessary information and that, in case of doubt, collection is deemed unnecessary.

Operator privacy in Morocco: Law 09-08

The CNDP's Deliberation 17-2014 sets the conditions for geolocating vehicles used by employees under Law 09-08. Permitted purposes include fleet management and optimisation, theft protection and assistance after a breakdown or accident. Data may be kept for no more than one year. Drivers must receive a notice that includes the CNDP filing receipt number, employee representatives must be informed in writing before installation, access is limited to the fleet manager and HR, and the system should only be active when the vehicle is used for work. A declaration to the CNDP is required, and transfers abroad must be notified.

The practical rule for both countries: track the machine for cost and safety, keep operator-level analysis for clearly stated purposes, and write the retention period down.

How do you measure ROI without inventing numbers?

Skip vendor percentages and build your own baseline:

1. Baseline month: per machine, record engine hours, idle hours, litres and output (m³ moved, linear metres laid, haul cycles).
2. Idle burn rate: use the fuel rate the telematics reports during idle. For reference, a UC Davis study for Caltrans measured idle rates of 0.5 to 2.2 gallons per hour on maintenance trucks, roughly 1.9 to 8.3 L/h, depending mainly on engine size. Your own machines will differ.
3. Act on one lever: auto idle shutdown, which Komatsu sets at a five-minute minimum in most cases, engine-off while queuing, which Caterpillar recommends for trucks waiting more than five minutes, or reassigning an underused machine.
4. Compare: savings = idle hours avoided × L/h × diesel price, plus rental days or machines released. Report it as MAD/m³ or CAD/m³ so the gain is tied to output.

For more on the fuel side, see our guide to reducing diesel consumption on a construction fleet.

Where GeoChantier fits

GeoChantier, published by Canalytics Group, is under development. The platform is designed to geolocate machines from GPS units or manufacturer telematics, with geofences and route history, and to convert engine hours, idle time and fuel litres into hourly cost per machine, per work package and per day, in MAD or CAD. A pilot programme is being prepared: tell us about your fleet.

Questions about your own fleet: contact@canalytics-group.com.

Frequently asked questions

Sources

1. ISO/TS 15143-3: ISO Fleet Data Exchange (AEM)
2. Telematics Standard for Mixed Fleets Secures ISO Approval (ENR)
3. ISO Approves Global Telematics Standard (Construction Equipment)
4. Tips for lowering your fuel costs even when prices are high (Komatsu)
5. Three ways to save fuel (Caterpillar)
6. Caltrans research results, Task 1520: fleet idling and fuel use (UC Davis AHMCT)
7. Cat Product Link FAQs (Caterpillar)
8. Komatsu Europe telematics terms and conditions
9. Rural mobile coverage, Question Period Note (ISED, Government of Canada)
10. Bill 64 (2021, c. 25), Gazette officielle du Québec
11. Bill 64 summary (Lavery)
12. CAI issues guidance on employee geolocation tracking (Fox Rothschild)
13. CNDP Deliberation No. 17-2014 on vehicle geolocation (Morocco)

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