Japan's webcam coverage is shaped by its geography and daily routines. In the cities, cameras are often operated by local broadcasters or municipal offices, pointing at busy intersections, station squares, and landmark crossings like Shibuya. These give a real-time sense of urban flow, especially during rush hours or seasonal events. The most distinctive group is the railway cameras. Japan's rail network is dense and punctual, and several enthusiast-run feeds watch level crossings and station platforms, particularly around Tokyo, Osaka, and Kyoto. These are less about official monitoring and more about trainspotting culture; they show the passing of shinkansen and commuter lines with a regularity that is almost hypnotic. Mountain coverage comes from two angles. Ski resorts in Nagano and Hokkaido operate slope cams through the winter, useful for checking snow conditions before driving up. The national road authority and prefectural highway offices place cameras on mountain passes and expressways, especially in regions with heavy winter snowfall like Hokkaido and the Japan Sea coast. These are checked by drivers before crossing passes such as Usui or around the Tateyama Kurobe route. Beach cameras are fewer but steady, mostly on surfing coasts like Chiba and Shizuoka, run by local surf shops or seaside hotels to show wave height and crowd levels. What you will not find is a single national traffic network as in some countries. Instead, coverage is patchy, built up by prefectures, private companies, and hobbyists. The mix of city skylines, rail crossings, and alpine roads means the page is best browsed by region: Kanto for urban rail and city views, Chubu for mountains, and Kyushu for coastal and beach scenes.