On a highway in central Japan, cars and trucks were unable to move in the snow over a distance of about 10 km (6 miles), public broadcaster NHK said.
Some 3,000 people were stranded at two train stations in the western city of Kyoto after snow and high winds forced service to be suspended on Tuesday, with some passengers forced to sleep on the floor at Kyoto's main station.
Others were stuck on at least 15 trains between stations, in some cases from late on Tuesday to the early hours of Wednesday, with some having to hike through the snow to reach a station where shelter had been arranged, NHK added.