What is the maximum speed limit for heavy trucks on Virginia highways?

The maximum speed limit for heavy trucks on Virginia highways is 65 mph unless otherwise posted. This limit is in place to enhance safety on the roads, particularly for larger vehicles that may require a longer stopping distance and have different handling characteristics compared to lighter vehicles. The established speed is a compromise that allows heavy trucks to travel efficiently while minimizing risks associated with speed differential between different types of vehicles on the road. It's important for drivers to be aware of posted speed limits, as these can vary in specific areas due to local regulations or changing road conditions, but the statewide standard for heavy trucks is 65 mph. Understanding this regulation is crucial for maintaining safety and compliance while operating commercial vehicles on Virginia's highways.