**Older adults** face more difficulties in complex situations of **merging and exiting roads where high-speed driving occurs** due to several reasons:

- **Reduced attention capacity**: Older adults may have less ability to pay attention and need more time to react to unforeseen situations. This is crucial in high-speed situations where decisions must be made quickly.

- **Vision and hearing problems**: Many people over 65 experience a decrease in their ability to see and hear. This can make it difficult to perceive the speed and distance of other vehicles, which is essential when merging or exiting a fast road.

- **Use of medications**: Some medications taken by older adults can affect their ability to drive, which can be especially dangerous in situations that require quick adaptation and response.

These difficulties make high-speed situations and complex maneuvers particularly challenging for older adults, increasing the risk of accidents in these circumstances.