**Elderly people** are at a higher risk of traffic accidents due to the **deterioration of their psychomotor abilities**. This deterioration manifests in several ways:

- **Reduced attention span**: Elderly people may have difficulty concentrating and paying attention to their surroundings, making them more vulnerable to unexpected events on the road.

- **Slower reaction time**: They need more time to react to unexpected situations, which can be critical when driving or crossing the street.

- **Vision and hearing problems**: Many elderly people experience a decrease in their ability to see and hear clearly, affecting their ability to perceive approaching vehicles or traffic signals.

- **Effects of medication**: Some medications taken by elderly people can affect their ability to drive safely.

These factors contribute to the higher risk of accidents among elderly people, making the deterioration of psychomotor abilities a main cause of these incidents.