Geofencing: What it is, how to use it and why it should matter to you

Geofencing is a location-based technology that creates virtual boundaries around geographic areas. When a vehicle crosses these boundaries, fleet managers receive instant alerts. Combined with a car tracking device or vehicle tracking device, geofencing moves fleet management from reactive to proactive - reducing vehicle theft, cutting fuel costs, improving driver accountability, and giving businesses real-time control over every vehicle in their fleet. Netstar offers four geofence types: proximity, route, park, and spot fences, each serving a specific operational or security purpose.

Most fleet owners and companies believe that fleet tracking software is only useful for tracking the whereabouts of their vehicles. While this is an excellent feature of many fleet management solutions, it is far from the sole benefit.

Geofencing transforms your car tracking device from a passive monitoring tool into an active security and management system. It lets you define what's normal for your fleet and get an immediate alert the moment something isn't. This guide explains exactly how it works, what types are available, and how Netstar makes it easy to set up and act on.

What is geofencing?

Geofencing is a location-based technology that uses virtual boundaries, known as geofences, to trigger specific actions or notifications when a device or object enters or exits predefined areas. Geofencing allows you to create virtual boundaries and designate a safe or unsafe geographic region.

You'll be notified whenever one of your fleet vehicles enters or exits this boundary. Virtual fences can be as tiny as your backyard or as large as the entire country, depending on your preferences.

In simple terms: a geofence is a virtual boundary. Cross it, and someone gets notified. Paired with Netstar's fleet tracking and management solutions, it gives you full operational visibility in real time.

How does geofencing work with a vehicle tracking device?

The concept of geofencing revolves around defining geographic boundaries and associating them with specific locations or points of interest. These boundaries can be as large as an entire city or as small as a specific building or area.

Geofencing relies on a combination of technologies such as GPS and cellular networks to establish and monitor these virtual perimeters. They are typically created using GPS coordinates or by drawing custom shapes on a map. Your vehicle tracking device continuously transmits GPS coordinates to Netstar's fleet management platform, and when a vehicle's position crosses the boundary of a defined geofence, the system triggers an automated alert sent instantly to the fleet manager or a designated contact.

If a vehicle moves into a high-crime area, leaves an approved route, or departs from a depot outside business hours, you know immediately. No waiting for a driver to report in. No discovering the problem after the fact.

One important safeguard worth noting: if a vehicle's GSM cellular connection is interrupted — a tactic sometimes used in vehicle theft - the car tracking device stores positional data locally. Once the unit is in coverage again, it will send the data to the servers that will then process it and send notifications as required.

What are the types of geofences you can set up?

Using a geofence in your fleet management software allows you to make sure that all vehicle activities happening within the fence or territory are tracked and information is stored for future reference.

Proximity fence

A proximity fence can be created by drawing a buffer zone (for a specific distance) over a particular point or a place. You may set up notifications when a vehicle enters the buffer zone. This helps you to know how close your vehicle is to a specific location.

Route fence

Route fences are virtually created routes with via points that help to restrict the movement of your fleets to a predefined route. When it comes to business uses, route fences let you have complete control over your fleets and the drivers who are using them.

Park fence

A park fence allows you to set a fence or virtual boundary for your assets or parked vehicle. A park fence eliminates your worry about your vehicles getting stolen or towed away and ensures that your vehicle or asset is safe and secure. It is often the first indication that something is wrong, as it triggers an alert the moment a vehicle moves without authorisation.

For businesses with high-value assets, Netstar's trailer manager extends geofencing protection to trailers and cargo, not just the cab.

Spot fence

These are fences created for a small spot or location on the map. A spot fence could be your office location, a pickup location, or a delivery point. Fleet management software will enable you to set an alert if a vehicle enters, exits, or stops at a particular point.

For example, if you have a logistics company with different collection centres in the city, you can mark all the pick-up spots on the map. The person in charge of the next location can be notified once the vehicle reaches a specific location and can be ready with the consignment that needs to be delivered.

What are the key benefits of geofencing for South African fleets?

1. Real-time vehicle theft prevention

Geofencing moves vehicle theft protection from reactive to proactive. Rather than discovering a stolen vehicle hours after the fact, you receive an alert the moment it moves outside a designated boundary. This dramatically reduces the time between theft and recovery response, and time is the single most important factor in recovering a stolen vehicle.

Pair geofencing with Netstar's fleet intelligence service to add predictive crime-pattern analysis to your security strategy.

2. Route optimisation and fuel savings

By combining geofencing with route optimisation, businesses can optimise their delivery routes, saving time, fuel, and resources. Geofencing allows for the creation of virtual perimeters and geo-targeted routes, ensuring vehicles take the most efficient paths while avoiding congested areas or road closures. By creating route fences, fleet managers ensure drivers follow approved, fuel-efficient paths and receive alerts when vehicles deviate.

3. Driver accountability and safety

Geofencing creates a transparent record of every driver's movement. Businesses can set geofences to monitor driving behaviour, such as entering restricted areas. Notifications and alerts can be triggered, reminding drivers to adhere to safety protocols and providing valuable insights for training and coaching purposes.

Netstar's AI camera solutions complement geofencing by detecting dangerous driving behaviour in real time, providing an additional layer of driver safety monitoring.

4. Proactive fleet management with geofencing alerts

Fleet managers can receive instant notifications when vehicles enter or exit specific geofenced areas, allowing them to monitor operations closely, detect anomalies, and address potential issues in real time. This supports proactive rather than reactive management.

5. Cargo and trailer protection

Geofencing isn't limited to vehicle cabs. Cargo-specific tracking integrated with geofencing allows fleet managers to monitor whether loads arrive at authorised delivery points and whether trailers are moved without authorisation. In South Africa's logistics sector, where cargo theft causes significant losses, this capability is increasingly important.

6. Data-driven operational decisions

Analysing geofencing data allows fleet managers to identify patterns, optimise routes, improve resource allocation, and make data-driven decisions. Every geofence event generates data - time of entry, dwell time, exit time, deviation frequency, that enables businesses to continuously refine their operations and achieve higher levels of efficiency.

Netstar's Data as a Service solution delivers this intelligence directly to your business, structured and ready to act on.

What are the limitations of geofencing?

Despite its numerous advantages, geofencing also has certain drawbacks that should be considered when implementing this technology.

• Privacy: one concern associated with geofencing is the potential invasion of privacy. As geofencing collects and process’s location data, it can lead to push back from employees or other individuals who might perceive this monitoring as intrusive. Ensuring transparency and obtaining consent when using geofencing can help alleviate these concerns and foster proper adoption.
• Battery drain: battery drain is another disadvantage of geofencing, particularly when using some GPS-based systems. Continuously monitoring location data can consume a significant amount of battery power on smartphones and other devices, which may lead to user dissatisfaction. That's why Netstar's application runs in the background, to save your battery life and allow you to use other apps.
• Technical limitations: GPS signals can be obstructed by tall buildings or other obstacles, reducing accuracy in urban environments. In instances where the unit's GSM cellular connection is interrupted, the positional data is stored on the device. Once the unit is in coverage again, it will send the data to the servers that will then process it and send notifications as required.
• Costs: the costs associated with implementing and maintaining geofencing systems can be a drawback for some businesses. Depending on the chosen solution's scale and complexity, businesses may face significant upfront costs for hardware, software, and infrastructure, as well as ongoing expenses for maintenance and support. While the benefits of geofencing outweigh these costs, businesses should carefully assess their budget and return on investment before adopting the technology.

How Netstar makes geofencing simple and effective

Netstar offers a robust geofencing solution designed to cater to the needs of companies across various industries. One of the key advantages of Netstar is its overall user-friendliness, making it easy for businesses to set up and manage geofences for their specific requirements.

The intuitive interface allows companies to create custom geofenced zones, monitor the real-time location of assets, and receive automated alerts and notifications based on predefined rules. Our account managers provide setup assistance and training, and our extensive support resources mean you're never left figuring it out alone.

Whether you're managing a small fleet, a mining operation, or a national logistics network, Netstar's geofencing integrates seamlessly with your existing fleet tracking and management setup.

Take control of your fleet with Netstar geofencing

Geofencing has become a gamechanger for businesses aiming to optimise their vehicle tracking and fleet management operations. By embracing this technology, businesses can achieve increased efficiency, improved safety, reduced costs, and enhanced customer satisfaction. Geofencing transforms your car tracking device from a location tool into a proactive security and management system.

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Frequently asked questions about geofencing and fleet management

What is geofencing in fleet management?

Geofencing in fleet management is the use of virtual geographic boundaries to trigger automated alerts when a vehicle enters or exits a defined area. Combined with a vehicle tracking device, it gives fleet managers real-time visibility, vehicle theft alerts, route compliance monitoring, and driver accountability, all without needing to watch a map continuously.

How does geofencing prevent vehicle theft?

A park fence creates a boundary around where a vehicle should be. If the vehicle moves outside that boundary without authorisation, such as overnight or during off-hours - the fleet manager receives an instant alert. This dramatically reduces the response time between a vehicle theft event and the deployment of recovery teams, significantly improving the chances of recovering the asset.

Can geofencing work if criminals use signal jamming?

Yes. Netstar's car tracking device stores positional data locally if the GSM cellular connection is disrupted. Once connectivity is restored, the stored data is transmitted, and all alerts are processed automatically. Netstar also uses counter-jamming technology to maintain connectivity where possible.

What types of geofences does Netstar support?

Netstar's fleet management platform supports four geofence types: proximity fences (for location approach alerts), route fences (for route compliance), park fences (for overnight vehicle theft protection), and spot fences (for precise delivery or collection point monitoring). Each type can be configured independently and combined for layered security and operational management.

Is geofencing suitable for small fleets?

Yes. Geofencing is scalable and valuable at any fleet size. Even with two or three vehicles, a park fence protects assets overnight, a route fence ensures drivers stay on approved roads, and alert notifications keep you informed without requiring constant monitoring. Netstar's small fleet tracking solution is specifically designed for smaller operations, delivering the same geofencing capabilities at an accessible price point.

Netstar is an operating company within the Altron Group and an industry-leading provider of vehicle tracking, fleet management, and geofencing solutions across South Africa.