Particularly, in Japan women only cars were introduced to fight against gropers (Chikan). The women only car policies vary from company to company: some women only cars are only effective during rush hour, others throughout the day or only are available for express subways and trains. Generally, these cars are in effect weekdays, except holidays. Posted throughout the platforms and train doors are signs that indicate which cars are for women only,and the dates and times they are in use. Although only intended for women, young male elementary school student, people with disabilities and their assistants are allowed to board the women-only cars by most train operators in Japan.
Many train companies had to introduce late-night and evening rush hour women only cars due to complaints of drunken men being gropers, and mixed train cars being too crowded and the stops too far apart allowing the gropers more of a chance to violate women.The ineffectiveness of campaigns to raise awareness to and prevent groping lead to many more train companies to follow suit and provide women only cars throughout the day.
Both men and women in Japan have shown positive reactions to the women only cars. Women have stated the safety they feel away from potential groping, and not having to tolerate various smells on a crowded mixed-gender train car. Men expressed not having to be worried of false accusations of being a groper. Many still believe that mixed trains are far too crowded and put women at more of a risk than ever. Foreign or visually-impaired men had been seen unknowingly boarding and riding on women only trains, passengers would notify them and the men would face serious embarrassment.
When visiting Japan when commuting be aware of which cars are mixed and women only. If you a male you don't want to face the embarrassing situation when you figure out you are in a car only for women. If you are a female and feel uncomfortable riding in an overly crowded mixed train, feel free to enter that women only car they were made for your safety!
-The more you know~