12 ottobre 2026
🇬🇧 The road that makes itself safe on its own Flash LED is the drone-rover system from A35 Brebemi and Ali.V.In. that positions itself on the carriageway, with the ability to communicate in real time with navigation apps and V2X systems. Awarded at the Asecap Days 2026, and already covered by a patent application, it improves safety conditions during the initial response. In every story of technological progress, there comes a moment when the observer realises they’re already behind the very thing they’re watching, and all that remains is the consolation — by no means a small one — of being able, at least, to recount that lateness. The writer had seen it in Bratislava, at the Asecap Days 2026, where «leStrade» attended as the event’s media partner and where the project received its award. The engineers who developed it, speaking about it again, now refer to it as “the old version”: a way of saying, without beating about the bush, that what’s described on these pages is a significant evolution of what appeared on the awards stage. In the meantime, while the observer remained fixed on the impression formed in Bratislava, the device had continued to change — quietly — as carefully made things do. Behind this evolution lie three years of joint work between two companies, A35 Brebemi and AII.V.In. (an engineering firm that designs and builds special-purpose vehicles for managing road infrastructure and mobility, nationally and internationally), two patent filings, the use of a test track Brebemi already owned for other purposes — the Arena del Futuro — and the Road Police’s involvement, far from merely nominal. That project has a clear name — Flash LED — and two signatories: A35 Brebemi-Aleatica, the concessionaire that manages the direct motorway link between Brescia and Milan, and AII.V.In. Together they are bringing to the motorway a technology designed to make lane closure operations more effective in the event of an accident or a breakdown. The system, honoured this year at the Asecap Days in Bratislava with the Innovation Challenge for the project “Rover I Flash LED”, is the outcome of a collaboration launched in 2023, also involving the Road Police, and is now protected by a patent filed in Italy in December 2024 and by a corresponding international patent application filed in December 2025. The patent is jointly owned, in equal shares, by A35 Brebemi (50%) and AII.V.In. (50%); the inventors are Righetti, Coffinardi and Mastroviti. To retrace the system’s origins, operation and future prospects, «leStrade» interviewed Giuseppe Mastroviti, Technical and Operations Director at A35 Brebemi, and Giuseppe Celia Magno, Chief Executive Officer of AII.V.In., gathering the perspective of both project partners. “With this project,” Celia Magno explained, “our first need is to provide an operational response for making motorway incidents safe.” Robotics in evolution The project was born out of a very practical operational need: to drastically reduce traffic exposure for personnel tasked with placing the usual warning signs to mark out a hazard— first and foremost, officers from the Traffic Police. Today, under the traditional procedure, setting up the signage means getting out of the vehicle and, together with a flag operator, moving progressively along the running lane to position the markers (flares, etc.). With Flash LED, by contrast, the operator steps out, takes the case, sets it on the ground and the set-up is effectively complete: the rover independently reaches the required spot and secures the area, while the officer can focus on managing the incident. As Giuseppe Mastroviti, Technical and Operations Director at A35 Brebemi, told «leStrade»: «once out of the vehicle, the operator will take our case, place it on the ground and, at that point, the operation is already finished. While the rover goes off to cordon off the area safely, the operator can get on with dealing with the incident». Developed with the Traffic Police involved from the earliest stages, the system has also been refined in terms of weight and size: the case was designed to be carried by a single operator and to fit precisely into the existing compartment on Police vehicles, without requiring any changes to the configuration of the cars in service. The aim of the project, in any case, goes beyond the Police’s initial response alone: the promoters’ stated goal is to reduce traffic exposure for anyone required to work at the roadside, including maintenance staff on worksites—although, to date, deployment remains focused on first response and making areas safe in emergencies. How the system works Flash LED consists of a case housing four rover-drones, making five warning devices in total (the case itself plus the four drones). The first version presented featured a fairly substantial case, almost a metre wide, to be placed across the motorway alignment, with the drones deploying out to the sides. In the latest version, the case has been rotated and is positioned lengthways along the motorway alignment, with the drones deploying straight out, keeping the warning-panel effect unchanged—simply flipped over. The footprint is only slightly smaller than the first version, but it can be placed far more easily in tight spaces. Where there is a hard shoulder, the case is still set within it at the roadside. This lengthways orientation becomes crucial, above all on stretches without a hard shoulder, because it still allows the case to be placed right up against the edge line without encroaching on the live traffic lane. Once the operator deployment has been authorised, the system could immediately send an "obstruction in carriageway" alert to navigation apps (Google Maps, Waze and others) and to Smart Road V2X systems—even before the drones have finished physically taking position. The drones move autonomously along the edge line at around 5 km/h, reaching the obstruction at an indicative distance of 70–100 metres, then arranging themselves diagonally across the carriageway. The spacing between one drone and the next is about 20 metres, creating overall warning closures of between 70 and 100 metres depending on the type of incident. In terms of illuminated warning signage, each drone is fitted with an amber rear light that visually recreates the effect of a "LED whip", a white front light designed to improve the visibility of personnel on the ground during night-time operations by lighting up the incident area, and a top-mounted light that mimics the "torch effect". One point needs clarifying, as it’s not a given: the E-CE R65 is the UNECE regulation that specifically covers emergency warning beacons fitted to vehicles (ambulances, rescue units, Police cars), not ground-based signalling equipment like this. The project documentation notes that the rovers’ LED modules were developed with reference to the same photometric requirements set out in that standard: in other words, it should be read as a performance alignment with signalling devices already in use, rather than a formal type approval in the strict sense. The barrier layout can be tailored case by case: using a handheld terminal (a tablet or smartphone), the operator sets the carriageway geometry, specifying the width and the number of lanes to be closed, even before the case is activated. The panel that opens during deployment also includes a lit directional indicator – an arrow that can be set to point left or right – guiding road users into the open lane. According to the latest project documentation, the maximum length of a diagonal closure achievable with a single set of rovers is around 160 metres: higher than the 70–100 metres quoted for the four-rover configuration validated in the field. The difference is not an inconsistency; rather, as the technicians themselves have repeatedly stressed, it reflects a platform evolving rapidly, where later versions may use a different number of rovers or a different spacing between units than the first generation tested with the Police. The underlying principle remains the same: when an incident affects multiple lanes, multiple cases with their respective rovers can be placed side by side to extend the boundary. The design brief also covers the harshest weather conditions: the rovers are built to operate in any climate, including snow, with a top section shaped so snow doesn’t build up and remains clearly visible to approaching traffic. Redundant communications and fault reThe drones’ communications system doesn’t rely on an Internet connection: each drone talks directly, wirelessly (peer-to-peer, Wi-Fi-style) to the one nearest to it, around 20 metres ahead, so the signal is maintained even when coverage is unavailable or disrupted. If a drone were damaged or destroyed during an operation—an eventuality anticipated by the project, which accepts the risk of impact to an individual unit—the other drones are designed to reposition themselves automatically and restore the formation’s balance, preventing the so-called "hole effect" in the signalling. As for external connectivity, the system is currently equipped with a SIM card to enable potential interaction with navigation apps, and it is already set up for possible integration with smart roads and direct vehicle-to-infrastructure (V2X) communication. The project partners’ stated aim is to communicate not only with apps and control rooms, but also directly with next-generation vehicles fitted with the enabling technologies, so that the incident can be flagged even to those who have not yet seen it. Power autonomy and charging The system’s endurance has been sized around patrol shifts, organised into four six-hour blocks across the 24-hour day: the drones are designed to hold charge for the full duration of a single shift, not the entire daily cycle, since the shift change effectively coincides with the charging window. Once recalled, the drones they recharge inside the case; when the case is stowed in the service vehicle’s compartment, it recharges in turn, so the system is fully operational again as soon as you’re back in the vehicle. A collaborative journey The project was presented to motorway concessionaires and the Police in December 2025, and was praised for providing a warning that road users can grasp immediately, while removing operators from exposure to live traffic. Since then, the system has followed a structured collaboration pathway: A35 Brebemi has been working with the Brescia Traffic Police since 2023, and within the scheduled meetings between Brebemi and the Police, a dedicated section has been opened specifically for Flash LED. Every update to the system has been shaped by the Police’s suggestions and first-hand checks; they tested earlier versions, identifying limitations and areas for improvement, including in the spaces at A35 Brebemi’s Arena del Futuro: an approximately one-kilometre test loop with motorway-style carriageway features, where, during 2025, deployment trials and accident simulations were carried out together with the Police. The results were officially presented at last October’s annual meeting between the Police and motorway concessionaires. The next phase will see the first three kits produced tested in real-world conditions, including abroad. The partners’ roles: Brebemi and All.V.In. In outlining the project’s key players, A35 Brebemi brings first-hand experience as a motorway operator and a clear understanding of on-the-ground operational needs, as well as access to the Arena del Futuro as a test facility. All.V.In., a Brescia-based company specialising in fitting out industrial vehicles for maintenance and traffic management — supporting motorway operators nationwide — contributed by identifying the most suitable technological solutions. The two partners stress, however, that responsibilities have not been set in stone: Brebemi also provided technical and engineering input, while All.V.In. works with numerous motorway concessionaires, giving it a strong sector-operator perspective too. Operational support and practical feedback from the Traffic Police were essential to delivering the entire project. Awards and outlook: from Mexico to South America After winning, the previous year, the Innova Award – Aleatica’s internal prize for the group’s best safety-innovation projects – Flash LED has this year received international recognition at the 53rd Asecap Days. The event brought several hundred delegates to Bratislava from more than twenty-five countries to discuss resilience, the decarbonisation of mobility and road safety as priorities for developing Europe’s infrastructure. In the innovation awards session, the project – officially also presented as an "autonomous emergency warning device" – was selected following an international assessment focused on automated systems for the safety of roadworks and motorway interventions, based on a technical dossier as detailed as the one outlined here. The Aleatica Group is now promoting the project to its other international concessionaires. Looking beyond its current use, the project was conceived from the outset with a dual purpose: to cordon off the area around an incident, and also to act as a forerunner in deploying roadworks signage. In day-to-day operations, however, attention remains focused on the initial obstacle-warning response, while use for roadworks – including abroad – is still an area to be developed. Key takeaways The project launch was accompanied by a number of official statements from those involved. "With Flash LED we want to take another step forward in improving the safety of everyone who works and travels on our roads every day," said Giuseppe Mastroviti. He added: "It’s a straightforward yet groundbreaking technology, enabling faster and safer interventions, and showing that prevention and innovation really can go hand in hand." Echoing the same message was Matteo Milanesi, Managing Director of A35 Brebemi - Aleatica, who described Flash LED as "a tangible example of our vision: bringing technology and safety together for mobility that is ever more sustainable and people-focused"—a project that "helps strengthen Brebemi’s role as a safe, cutting-edge infrastructure, able to protect both road users and operators, while testing solutions that could become industry standards". All.V.In. also highlighted the technology’s preventive value, calling it part of "smart, preventive solutions" that demonstrate "A35 Brebemi - Aleatica’s commitment to the safety of users and operators, making interventions faster, safer and more effective". Credit: Fabrizio Parati