Final answer:
To safely navigate loose gravel on the roadway, one should slow down and maintain a steady speed, ensuring careful vehicle control.
Step-by-step explanation:
When you encounter loose gravel on the roadway, the safest action to take is to slow down and maintain a steady speed. This approach minimizes the risk of losing control of your vehicle. Accelerating could cause the tires to spin and lose traction, while braking suddenly could initiate a skid. Swerving might lead to an overcorrection and a potential accident. Maintaining a steady speed, with gentle movements and increased focus, will help navigate safely through loose gravel, reducing the risk of an incident.