Smart CCTV systems trained to spot blockages in urban waterways could become an important future tool in flood prevention, new research published Oct. 3 in the Journal of Flood Risk Management has found. Smart CCTV systems trained to spot blockages in urban waterways could become an important future tool in flood prevention, new research published Oct. 3 in the Journal of Flood Risk Management has found. Earth Sciences Environment Phys.org – latest science and technology news stories