Public transportation:Very safe
In Nagasaki, public transportation is incredibly safe. The city offers an efficient and reliable network of transportation systems including trams, buses, and trains. Safety measures are well-implemented and the general public is respectful of other passengers' personal space. Crimes or aggression on public transit are extremely rare, with most passengers simply going about their own business. Furthermore, stations are clean, well-lit, and usually staffed. Thus, it's confidently recommended for solo female travelers.