How can you improve visibility when driving in heavy rain?

Using your windshield wipers and headlights is the most effective way to improve visibility when driving in heavy rain. Windshield wipers are specifically designed to clear away rainwater from your windshield, allowing you to see the road ahead more clearly. Headlights complement this by increasing your visibility and helping other drivers see you better. In heavy rain, the glare from headlights can reflect off the road surface, making it difficult to see, but having your headlights on is still important to ensure you are visible to others.

While turning on hazard lights may alert others to your presence, it does not improve your own visibility of the road. Reducing speed is a wise practice in poor weather conditions, but signaling frequently doesn't necessarily enhance visibility directly. Opening windows may actually worsen visibility if rain comes in and distracts you from driving safely. Therefore, using your windshield wipers and headlights focuses directly on improving what you need most: clear visibility on the road.