With winter comes dangerous driving conditions. Black ice, heavy snowfall, roads that have not been cleared of snow and other bad driving conditions can all make it more difficult to control your vehicle and avoid an accident. Each year, 24 percent of weather-related vehicle crashes occur on snowy, slushy or icy pavement and 15 percent happen during snowfall or sleet. And not only is there snow and ice, but also fewer hours of daylight. Weather conditions can affect driver visibility and the ability to maneuver a vehicle, thus impairing driving ability.