HGV Navigation Systems & Truck GPS

HGV navigation systems (also called truck route planners, truck navigation systems or truck GPS) are specialised sat nav solutions designed for heavy goods vehicles. Unlike standard car navigation, they take into account vehicle height, weight, number of axles, hazardous goods and local HGV restrictions.

Based on this truck-specific data, the system calculates safe and legal routes that avoid low bridges, weight-restricted roads, tight turns, residential streets and other roads unsuitable for lorries and articulated trucks. Many HGV navigation systems also include live traffic information, estimated arrival times (ETA), driving time limits and integration with telematics platforms.

By routing trucks on appropriate roads, HGV navigation systems help reduce detours, fines and delays, improve driver safety and support more efficient, cost-effective transport planning.

Route planning and navigation

In many companies the route is planned twice: once in the office to price the job, with distance, tolls and driving time, and again in the cab by a navigation app that calculates its own way. If the two differ, the toll and the time in the quote no longer match the trip. IMPARGO combines both: the Planner Module calculates the HGV route using the vehicle's height, weight and axle profile plus the toll per country, and the planned tour is sent to the driver, who follows it with truck navigation in the DriverApp.

What a truck navigation needs to know

A truck navigation is only as good as the vehicle profile behind it. The system needs the real height of the vehicle including its load or body, its width and length, the gross weight and axle loads, the number of axles, whether a trailer is attached and, for dangerous goods, the classes on board. A profile that still shows a solo truck when a trailer is coupled, or a standard height for a high-cube load, produces a route that looks fine on the screen and fails at the first low bridge or tight junction.

The second input is the map. Restrictions change: a bridge is re-signed, a town centre gets a lorry ban, a road closes for works. Systems that update their map data regularly and take time-based rules into account, such as night or weekend bans, keep the planned route closer to what the driver meets on the road.

Limits of truck navigation

Even the best system does not replace the driver's eyes. Road signs on site take precedence over the screen, and a temporary restriction or a missing sign in the map data can still catch a truck out. Drivers should therefore know the height and weight of their vehicle, and dispatchers should check that the vehicle profile in the system matches the truck and trailer actually on the road that day.