Volta Redonda is generally safe during the day with a decent amount of public presence. However, it's advisable to avoid isolated areas and minimize outdoor activities once night falls. Like in any other place, it's recommended to remain vigilant and aware of your surroundings. Keep your personal belongings secure and avoid displaying any expensive items in public. It's always a good idea to consult with locals or the hotel where you're staying about the areas to avoid. Public transportation is reliable but can get crowded at times.