Judul : Rwanda Invests $1bn in Road Evaluation Tech
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Rwanda Invests $1bn in Road Evaluation Tech
Rwanda is expected to obtain a Multi-Function Vehicle (MFV) and a Falling Weight Deflectometer (FWD), essential tools used in assessing road pavement after construction. ALSO READ: Inside Rwf140bn project to upgrade Kigali roads Officials from the Rwanda Transport Development Agency (RTDA) called this a significant advancement towards scientific and data-based road construction and maintenance. These technologies cost approximately $800,000 (around Rwf1.1-1.4 billion), according to RTDA. The equipment, acquired from Denmark, will allow engineers to evaluate the condition and strength of national and district roads without causing traffic disruptions or damaging pavements, as stated by RTDA officials to The New Times on Friday, November 14. ALSO READ: Roads to the future: Infrastructure as backbone of Rwanda’s economic transformation Imena Munyampenda, Director General of RTDA, mentioned that the two technologies will arrive in the country in December and begin operations early next year. “These tools will provide real-time, accurate, and comprehensive data about the state of Rwandan roads. It's a major shift from visual inspections to scientific pavement analysis,” he said. ALSO READ: Upgrading Kigali’s roads, a timely step toward a smarter, faster city The Multi-Function Vehicle is an advanced mobile laboratory that scans roads while traveling at normal traffic speeds. “Using laser sensors, high-resolution cameras, and a suite of digital measurement systems, the MFV captures both visible and hidden signs of pavement distress,” Imena said. “It generates 2D and 3D images of the road surface, allowing us to detect cracks as narrow as one millimetre, measure pavement texture, identify and evaluate rutting across a four-metre width in a single continuous run.” ALSO READ: PHOTOS: Progress of 10 key upcountry road construction projects He added that the vehicle is equipped with the Laser Crack Measurement System (LCMS), one of the most advanced pavement imaging technologies available. “It uses laser line projectors and high-speed cameras to create detailed 3D profiles of the road, enabling automatic detection of cracking, potholes, shoving, bleeding, and other defects that affect safety and comfort. This means that even tiny weaknesses in the asphalt can be detected early, long before they become costly failures,” he added. The Multi-Function Vehicle (MFV), housed in a Mercedes-Benz Sprinter, also has a Road Surface Profilometer (RSP), a system that measures the International Roughness Index (IRI) and Ride Number (RN), both internationally recognized indicators of road smoothness and pavement quality. ALSO READ: How RTDA, AfDB are transforming Rwanda’s transport landscape The RTDA director also explained that its system can operate day or night at speeds of up to 100 kilometres per hour and includes a unique 'stop and go' feature that allows accurate measurements in urban areas with traffic lights, roundabouts and stop-and-go movements, which will enable RTDA to survey both urban and rural networks efficiently. “We will have continuous, high-precision surface data for thousands of kilometres. This will help us prioritize maintenance, plan rehabilitation and extend the lifespan of our roads,” Munyampenda said. The MFV also comes with GPS, optional gyroscopic systems and up to eight cameras that can be integrated into national Geographic Information Systems, giving planners a complete view of road features and nearby infrastructure. ALSO READ: Govt set to inaugurate over 150km of new roads While the MFV focuses on what engineers can see on the surface, Imena said that the Falling Weight Deflectometer (FWD) scans what lies beneath. “Mounted on a pickup truck, the FWD evaluates the structural strength of the pavement layers and the soil foundation. It does this by dropping a calibrated weight onto a loading plate, creating a force that simulates the impact of a heavy moving truck. Sensors arranged around the impact point immediately measure how the pavement bends,” he said. He explained that the bending pattern tells engineers whether the underlying layers are strong enough or beginning to weaken. “The method is non-destructive, meaning the pavement remains intact while still providing crucial data about its structural capacity. Because the FWD delivers immediate readings, we will be able to assess many road segments in a single day, making it highly efficient for network-wide evaluations,” he noted. ALSO READ: Govt unveils Rwf360bn project to construct 215km of tarmac roads Munyampenda also said the FWD will significantly enhance the quality of road design and reconstruction. “When we know the exact strength of each pavement layer, we can design better roads and recommend rehabilitation options with precision. This new tool will reduce guesswork, save public funds and prevent premature road failures,” he explained. The FWD measurements help determine the thickness of pavement layers required to carry current and future traffic. Its data is also fed into computer models that simulate long-term performance, allowing engineers to estimate how roads will age over time and how frequently they will need maintenance.
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