JR東日本はしばらくは沼津駅以西まで通勤電車を走らせていたと思います。 現在もやっているのかどうかはわかりませんが、通勤電車はすべて熱海駅に終着します。(I believe for some time JR East would run commuter trains as far west as Numazu Station. Not sure if they're doing it now, with their commuter trains all terminating at Atami Station.)