Although driver cabins are equipped with sun visors, more than 70 percent of Shinkansen and conventional line drivers expressed a preference for sunglasses after the trials. Starting in February, JR East will provide sunglasses with polarized lenses that do not affect signal visibility. Staff at 17 stations, including Shinjuku and Yokohama, where safety checks are required throughout the day on the platforms, will also be allowed to wear shades. Companies that allow the use of sunglasses include West Japan Railway Co. (JR West), Central Japan Railway Co. (JR Tokai), Kyushu Railway Co. (JR Kyushu) and major private operators including Keikyu Corp. and Seibu Railway Co. JR Tokai fully introduced sunglasses for conventional line drivers in 2023; it said that 95 percent of drivers reported improved visibility in a survey and 77 percent felt reduced fatigue. Passengers also don't seem to mind the new look.