Children and the elderly are the groups of pedestrians most at risk of traffic accidents.

- **Children**: Although not detailed in the fragments, it is known that children are vulnerable due to their lack of experience and lower ability to assess risks on the road.

- **Elderly**: They have several issues that increase their risk as pedestrians:
- Difficulty hearing vehicles due to ambient noise.
- Problems estimating the speed of vehicles.
- Difficulties distinguishing the colors of traffic lights.
- Scarcity of pedestrian crossings in some areas.
- Poor lighting on certain streets.
- High curbs and obstacles on sidewalks.
- Orientation problems on unfamiliar streets.


- The elderly have more accidents when they are alone, as when they are accompanied by children, they tend to be more careful to protect them and set a good example.

For these reasons, both children and the elderly are considered at-risk groups in the context of traffic accidents.