In driving behaviors, what might indicate an excessively slow driver?

An excessively slow driver is often characterized by traveling significantly below the posted speed limit, which can create hazards for other drivers and disrupt the flow of traffic. When a driver is going more than 10 mph below the posted limit, this is a clear sign of excessively slow driving, as it may signal that the driver is not adequately adjusting their speed to match typical traffic conditions.

Driving under the speed limit can occur for various reasons and may not always indicate that a driver is excessively slow. Instead, it may simply reflect compliance with safe driving practices in certain conditions. Driving with no lights on generally pertains to visibility issues rather than speed, while consistent speed adjustments may suggest a driver is responding to changing road conditions; this behavior can even be a sign of a cautious driver rather than one who is excessively slow. However, going more than 10 mph below the limit consistently disrupts traffic flow and highlights a real concern regarding driving behavior.