What is the effect of an unclean windshield during a night drive?

An unclean windshield during a night drive significantly compromises visibility. When the windshield is dirty, it can create a haze that distorts the light from headlights and streetlamps, making it difficult for the driver to see the road clearly. This distortion can cause glare or unwanted reflections that hinder the driver's ability to identify obstacles, navigate properly, and maintain awareness of their surroundings. During nighttime driving, the need for clear visibility is paramount, as low light conditions already make it challenging to see; an unclean windshield exacerbates these challenges and can reduce safety on the road. Thus, maintaining a clean windshield is essential for optimal visibility at night.