What is the visibility like for traffic exiting the drive? Is there, for example, a high hedge or wall or sharp alignment that obscures visibility? Perhaps not such a problem when only pedestrians are present, as they are likely to be able to hear an exiting car that might not be visible and they’d tend to be moving quite slowly – but would the same apply to a cyclist zipping along at 15-20 mph in the same location?
Is this what the resident is concerned about? If so, should they improve the visibility from their property to the public highway?