Is it legal to drive slower than the posted speed limit?

Driving slower than the posted speed limit can be legal under certain conditions, specifically when it does not impede the normal movement of traffic. In Virginia, as in many other states, there can be scenarios where driving at a lower speed is necessary for safety reasons, such as when navigating a difficult driving condition, or executing a specific legal requirement (like being cautious around pedestrians or in adverse weather).

However, it's important to balance safety with the flow of traffic. If a driver is going significantly below the speed limit and causing delays or hazards to others on the road, they could potentially be cited for obstructing traffic. Therefore, while it is lawful to drive slower than the posted speed under cautious situations, the key factor is ensuring that this does not create an obstacle for other road users. This understanding helps in maintaining a safe and efficient driving environment for everyone.