July 28, 2025

Image-Based Site Communication – The RATP Case Study

In the public and private sectors alike, site communication has become a strategic issue. Informing local residents, reassuring elected officials, coordinating various technical departments… these are just some of the challenges project owners face. With Devisubox, RATP has implemented an innovative project communication strategy based on real-time site images and video content designed for both the general public and professionals. A Multi-Faceted Approach to Project Communication For the extension of the T3b tram line in Paris, the RATP teams, in partnership with the City of Paris, integrated a comprehensive site communication plan. This complex project involved both surface and underground work, requiring close coordination between RATP’s technical services, municipal teams, and contracting companies. To streamline communication, the Devisubox monitoring interface was used as a central site communication tool. The coordinator from the City of Paris, for example, logged in regularly to monitor the progress of the underground work and plan surface-level interventions. This is one of the key benefits of site images: they create a common language among all stakeholders. A Stronger Relationship with Local Residents Another fundamental aspect of site communication is the connection with residents. To achieve this, RATP regularly published content on its Facebook page, including Reels (short vertical videos) produced by the Devisubox studio. These engaging formats help to simplify the project’s stages, show the actual progress of the work, and maintain a climate of transparency and trust. This narrative and visual approach is a game-changer: it transforms a site, often perceived as a nuisance, into a collective project supported by tangible images. Tools to Showcase Every Stage Beyond daily monitoring, the teams used Devisubox’s Before/After feature, which is particularly useful in an urban setting. With a simple slider, it’s possible to compare two photos taken from the same spot several months apart and instantly visualize the project’s evolution. This is a valuable tool for communicating with local authorities and for clearly illustrating the project’s benefits to the general public. A Video to Launch… and to Capitalize On Finally, at the end of the project, a communication video was produced by Devisubox, compiling the best images captured throughout the duration of the work. This video was presented during the official inauguration of the T3b tram extension, attended by local elected officials and all stakeholders. This deliverable marks the culmination of the project, but it is also a long-lasting asset: it can be reused in other public meetings, on social media, or in end-of-project reports. A New Way of Thinking About Site Communication The RATP case study demonstrates how site communication today goes far beyond simple regulatory signage. It is a strategic lever for managing a project, uniting its stakeholders, engaging with citizens, and showcasing results. Thanks to Devisubox’s visual tools—real-time photos, videos, Before/After comparisons—teams have tangible, effective, and engaging assets for every stage of the project.

Securing Site Access: How Devisubox’s AI Detects Risks and Improves Prevention

At Devisubox, artificial intelligence is a practical tool for improving safety and efficiency on construction sites. Thanks to our SupervisionAI solution, we can detect a wide variety of objects, situations, and behaviors—and most importantly, intelligently interpret them based on logical scenarios defined with our clients. This was the case for a project in Canada, located alongside a busy highway (a 6-lane road with a central median). Truck access was at a right angle, making every entry potentially hazardous for on-site personnel. Verifying Access Rules with AI To make these maneuvers safer, strict rules were established: every truck arrival had to be guided by a flagger, equipped with the necessary PPE, responsible for securing the vehicle’s entry. Adherence to this procedure is essential. Here, SupervisionAI acts as a true safety prevention assistant for construction sites. By automatically detecting vehicles (by type), people, and the use of protective equipment (vests, helmets, etc.), our system can identify at-risk situations in real time. In practical terms, we program the AI with simple and effective rules: – If a truck is detected without a person present, an alert is sent. – If a truck is accompanied by a person who is not wearing a reflective vest, a notification is also triggered. These images, automatically filtered by our autonomous camera, are then sent to the safety manager. They serve as tangible support for leading safety briefings and raising team awareness about best practices. A Tool for Site Safety Prevention, but Also for Performance Optimization As with all images captured by Devisubox, faces are automatically blurred to guarantee the anonymity of employees and to comply with current regulations. Beyond accident prevention, this visual data also allowed the site manager to optimize the site’s organization. By analyzing the images, he noticed that the heaviest trucks were blocking traffic during their maneuvers. He therefore implemented new rules: tonnage restrictions at certain hours and scheduling deliveries outside of peak traffic times. This case study perfectly illustrates the added value of artificial intelligence applied to site monitoring: better prevention, increased responsiveness, and more informed decisions. In other words, a safer, better-organized… and more efficient site.

Showcasing the People on Your Sites with On-Location Filming

Documentary-style video content is now an essential part of project communication. While a timelapse condenses months of work into a few seconds, it only shows one part of the story. Behind the cranes and foundations, there are gestures, faces, and skills. And to highlight them, nothing beats content created on a human scale. At Devisubox, we believe a project’s progress isn’t just measured by its metrics. It’s also seen in the attention given to the people who work there. That’s why, in addition to our timelapses and aerial shots, we offer a dedicated solution: on-location filming to produce compelling narrative videos. Seeing Beyond the Site: Telling the Stories of Those Who Build It Where timelapse shows the overall movement, on-location filming focuses on the moments. A gesture, an exchange, a daily routine. It introduces a different rhythm, a more intimate narrative, and offers a complementary vision of the project. Our camera operators work directly on-site, equipped to blend into the environment without disrupting operations. They know how to position themselves, choose the right moments, and above all, film without ever compromising on safety. They all come with their own PPE. As Lucie Darres Souyri, Operations Manager for the Société Canal de Provence, points out: « A significant bonus: all crew members come with their own PPE and know exactly what to film. They know their craft, but also the essential safety rules of a public works site. » Lucie Darres Souyri, Operations Manager, Société Canal de Provence On-Location Filming: A Blend of Technical Skill and Visual Sense At Devisubox, our dual culture—visuals and construction—makes all the difference. We know how to execute an on-location filming session that respects on-site constraints while delivering powerful and clear images for all stakeholders. In addition to ground-level footage, we also use drones to provide immersive aerial shots. This combination allows us to cover the entire site, from the technical gesture to the big-picture view, and to create effective content for both internal and external communication. Valuing People, Strengthening Buy-In Shining a light on the men and women of the site also boosts team pride, unites people around the project, and produces high-value content for reports, presentations, or corporate publications. With over 2,500 sites monitored with timelapses and dozens of on-location filming projects completed, Devisubox is now much more than just a provider of autonomous photo cameras. We are an audiovisual creative studio, capable of adapting formats to your objectives.

Construction: No AI Without Digitalization

This editorial was originally published in our February 2025 newsletter. The studies leave no doubt: the global market for AI in construction is expected to triple in 3 years. All sectors are impacted, but not at the same speed. Planning and design are already highly digitalized fields, which is not the case for on-site operations like safety and monitoring. This isn’t inevitable, and 2025 could well be the year the construction industry catches up. How? We’ll tell you more in this revamped newsletter. According to Mordor Intelligence, the source of a study on AI’s impact on the construction market, three main sectors have already been significantly disrupted by Artificial Intelligence. In practical terms, what are we talking about? Planning and Design AI optimizes the design and planning phase of construction projects by reducing errors and improving efficiency. Think of industry-specific software that is becoming smarter, offering to generate designs by analyzing millions of possible configurations. This is already being offered by Autodesk, the market leader. AI-powered BIM also allows architects and engineers to save precious time by transforming a 2D plan into a 3D model. On this topic, see what the French company WiseBIM is doing. Monitoring and Safety Site monitoring is also a field in the midst of transformation. This is where computer vision algorithms display their full potential, using image recognition to analyze on-site activity or to prevent at-risk situations. These latter subjects, safety and productivity, are what we are developing at Devisubox with our autonomous photo cameras and our detection algorithm. Our goals: accident prevention through the detection of at-risk situations and productivity improvement through the analysis of project stages. A word of caution: there can be no AI without digitalization, and to digitalize a site, you need to produce images. Surveillance cameras are a costly investment as they require the installation of a telecom network and a stable electrical connection. This is why we recommend using photo cameras powered by batteries and solar panels. Equipment and Maintenance AI, coupled with onboard sensors in machinery, makes it possible to anticipate breakdowns, optimize the use of equipment, and, most importantly, allow typically very closed-off manufacturer protocols to communicate with each other. This is what the French company Hiboo offers. Next-generation equipment is also entering the market, from painting robots like the one from Les Companions to the semi-autonomous machines already being tested by Caterpillar. AI is creating lasting disruption in all markets, provided they are digitalized. ChatGPT would be powerless if it weren’t connected to its knowledge base (i.e., the internet). This is the natural evolution for digital fields, but it becomes more complicated for analog environments, like a construction site. If the construction industry intends to catch up and get on board with AI, it will have to go through this transformation and systematically equip sites with an image-capture system. We are, of course, available to discuss this further. 💡 At Devisubox, we started training our AI in 2018! To comply with European data protection regulations, we implemented a solution to blur the faces of people working on a site. Doing this by hand was out of the question (we receive tens of thousands of photos per day). So, we trained an algorithm to recognize silhouettes and faces. Seven years later, this algorithm is now capable of detecting at-risk situations on a construction site. Ivan Lorne, CEO Devisubox

The Devisubox Autonomous Photo Cameras

Devisubox photo cameras are designed to capture every moment of your construction site—with no cables, no connections, and no infrastructure. A wireless, autonomous, and intelligent construction camera dedicated to remote site monitoring and creating cinematic timelapses for your communications. Proprietary Technology Our autonomous photo cameras aren’t just cameras placed in a rugged housing. Our devices embed a proprietary controller card—the result of 95 man-years of R&D—that transforms a standard camera into an intelligent construction camera: remotely controllable, connected, solar-powered, and above all, extremely reliable over the long term. Complete Autonomy Durability and Installation Flexibility Designed for demanding environments, our cameras are: Our technicians have a wide range of solutions to install your wireless construction camera, including at height or in complex areas.caméra de chantier sans fil, y compris en hauteur ou sur des zones complexes. Two Models to Cover All Uses Vision Camera Large-format DSLR sensorPrimary use: Cinematic videos, site communicationCan also be used for site monitoring Compact Camera Optimized smartphone sensorPrimary use: Remote monitoringCan also be used to create timelapses for documentation purposes An Image is More Than Just a Sum of Megapixels It’s not just the resolution that produces a high-quality image, but also the size and quality of the sensor. A large sensor (like in a DSLR camera) captures more light, renders details better, and produces clearer images, even in difficult conditions. The use of professional-grade lenses also influences the cinematic look of an image. This is why a DSLR camera sensor, paired with a cinema lens, will always produce more beautiful images, even at an equal or lower resolution. These differences are what allow us to produce the high-quality construction videos and cinematic timelapses that Devisubox is known for. Devisubox Also Means Custom Support Every construction site is unique. Our experienced teams support you in choosing the construction camera best suited to your needs, whether for communication, reporting, documentation, or daily monitoring.

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