Since January 2026, drivers in Spain have been required to use a connected V16 emergency beacon instead of traditional roadside warning triangles when their vehicle breaks down or is involved in an accident. What might appear to be a simple flashing light actually represents a sophisticated example of how cellular IoT technologies are being integrated into national traffic management systems.
The V16 beacon is designed to be placed on the roof of a vehicle and activated immediately in the event of a breakdown or accident. The device emits a bright amber flashing light visible in all directions, improving visibility for approaching vehicles without requiring the driver to walk along the road to place warning triangles. This alone reduces the risk of secondary accidents, particularly on high-speed roads.
The real innovation, however, lies in the connectivity built into this new generation of safety hardware. Certified devices include a GNSS receiver and a cellular communication module. Once activated, the beacon automatically determines its position and transmits its geolocation to the national traffic platform operated by Spain’s traffic authority, the Dirección General de Tráfico (DGT).
This data is sent to the DGT 3.0 traffic platform, which aggregates information from multiple sources including traffic control centres, connected vehicles, and roadside infrastructure. Once the beacon reports its position, the system can distribute the information to traffic management systems, navigation platforms, and mobility applications. This allows drivers approaching the location to be alerted in real-time, often before they even have a visual on the stranded vehicle.
From a connectivity perspective, the V16 beacon functions as a specialised IoT device deployed across the national road network. Many devices rely on LPWAN (Low Power Wide Area Network) technologies such as NB-IoT or LTE-M. These standards are ideal for this use case because they offer low power consumption, allowing a device to remain dormant for years but activate instantly on a single battery. They also provide deep coverage with superior signal penetration, ensuring the beacon can check in even in remote areas or mountainous terrain. Unlike consumer smartphones, these devices are designed for mission-critical reliability without the need for manual pairing.
The deployment has created an interesting ecosystem involving several major mobile operators. Telefónica Tech provides IoT connectivity for a large majority of the certified beacon models, working with dozens of manufacturers to integrate connectivity and device management. Vodafone Spain has also supported large-scale deployments using its dedicated NB-IoT network, while Orange Spain offers V16 devices connected through its own robust IoT infrastructure. Crucially, most of these devices utilise eUICC (eSIM) technology. This allows for long-term connectivity, often bundled for 12 to 15 years, guaranteeing that the device remains connected for life without the user ever needing to manage a SIM card or a subscription.
Another notable aspect of the system is that the beacon transmits location data anonymously. The DGT 3.0 platform receives the position of the hazard but does not identify the specific driver or vehicle owner. The focus is strictly on improving situational awareness across the road network rather than collecting personal metadata.
In effect, Spain has transformed what used to be a passive roadside safety device into an active node within a national digital traffic ecosystem. By combining GNSS positioning, low-power cellular connectivity, and cloud-based traffic platforms, Spain has created a system where a single button press triggers a chain of automated alerts across the entire mobility ecosystem. It is a blueprint for how cellular IoT can move beyond gadgets and become a fundamental pillar of public safety.
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