Vulnerable **groups** in traffic are those who are at higher risk of having accidents. These groups include both **pedestrians** and **drivers**.

- **Children and elderly people**: They are the most vulnerable pedestrians. Children, due to their lack of experience and lower ability to assess risks, and elderly people, due to possible physical or cognitive limitations, are at a higher risk of having accidents.

- **Young people and elderly people**: Among drivers, young people and those over 65 years old are the most likely to have accidents. Young people may be more impulsive or inexperienced, while elderly people may face challenges related to health or decreased reflexes.

- **Two-wheeled vehicles**: Cyclists, motorcyclists, and moped riders are also considered vulnerable due to the lower protection these vehicles offer in case of an accident.

Therefore, **children, young people, and elderly people** are the main vulnerable groups in traffic, as they encompass both pedestrians and drivers at higher risk.