To drive safely on a road with **ice**, it is essential to **reduce speed** and **use high gears**. This is because ice reduces the tires' ability to grip the road, increasing the risk of the vehicle skidding.

- **Reduce speed**: Driving slowly allows you to have more control over the vehicle and increases reaction time to any unforeseen events. Additionally, you need more space to brake in icy conditions.

- **Use high gears**: By using high gears, the vehicle moves at a higher speed with less engine force, which helps avoid sudden movements that could cause the vehicle to lose traction and skid.

These precautions are similar to those that should be taken when driving in snow, where it is also recommended to choose a gear that allows starting with more speed but with little engine force. This helps maintain control of the vehicle on slippery surfaces.