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When there is greater difficulty in gathering information, the speed:

Whenever there are factors that make it difficult to gather the necessary information for safe driving, such as night driving or reduced visibility, the driver must reduce speed. Speed moderation is essential to ensure that the driver can stop the vehicle in the clear and visible space ahead, reacting in time to any unforeseen event. Increasing speed or maintaining it unchanged in these circumstances seriously compromises road safety, as it reduces reaction time and increases stopping distance. The mere use of vehicle lights does not compensate for the loss of visibility or the complexity of the environment, and it is always mandatory to adapt speed to the actual road conditions.