Kajima Corporation, one of Japan's largest general contractors, has launched a pilot program with expressway operator NEXCO East Japan and its technology subsidiary NI&C to test a network monitoring system that uses existing fiber-optic cables along a major highway to track traffic. Kajima Corporation, one of Japan's largest general contractors, has launched a pilot program with expressway operator NEXCO East Japan and its technology subsidiary NI&C to test a network monitoring system that uses existing fiber-optic cables along a major highway to track traffic. The pilot connects newly installed sensing fibers on bridges, tunnels and culverts to existing expressway communication cables, enabling a single device to monitor a 100-kilometer corridor for traffic, icing and structural anomalies. Photo by note thanun on Unsplash note thanun Kajima Corporation. IEC 61757-1-4『Fibre optic sensors - Part 1-4: Strain measurement - Distributed sensing based on Rayleigh scattering』 was published（2025-12-26）. In a new study, researchers from Shibaura Institute of Technology and Yokohama National University, Japan, have demonstrated that operating near a. Hino: Fiber optic sensing is a technology that uses fiber optics to measure vibration, temperature and sound. This is NEC's proprietary. Researchers have developed a new method to accurately estimate modulation amplitude and determine spatial resolution without additional devices Brillouin scattering in optical fibers is essential for sensing temperature and strain and for achieving high spatial resolution in infrastructure. The scope of the book includes the following chapters: 1. The chapters in this edited volume are by scholars/experts working in academia in Taiwan, Egypt, Israel, Germany and Japan. The contents are intended to provide a common forum for researchers, scientists and.
