In what scenarios are blind corners most hazardous?

Blind corners are particularly hazardous in situations where visibility is significantly restricted. This lack of visibility can arise from various factors, such as geographical features like hills or curves, buildings, or even dense vegetation. When a driver cannot see what lies ahead, it is impossible to adequately assess the situation, which can lead to dangerous outcomes, especially if other vehicles, pedestrians, or obstacles are present.

In these scenarios, the risk of a collision increases dramatically because drivers may not have enough time to react to unforeseen circumstances. Moreover, when approaching a blind corner, a driver might not be able to determine the speed or position of other vehicles, making it challenging to gauge when it is safe to proceed. This situation emphasizes the importance of caution and reduced speed when navigating blind corners, as they pose a significant risk for accidents.

Visibility is key to safe driving, and without it, drivers must rely on their instincts, which can lead to errors in judgment. The other options tend to imply scenarios where visibility is either improved or traffic control measures (like signals at traffic lights) are in place, which contribute to safer driving conditions.