What is the speed limit on interstate highways?

The speed limit on interstate highways in Virginia is typically 70 mph for cars. This speed limit is designed to promote efficient traffic flow while maintaining safety. It takes into account the high-speed nature of interstate travel and allows drivers to keep up with the general flow of traffic.

In areas where there are specific conditions such as construction zones or urban congestion, the speed limit may be lower. However, under normal circumstances, 70 mph is recognized as the standard for interstate highways. This speed allows drivers to cover longer distances quickly, which is particularly important for interstate travel.

The other options represent lower speed limits that may apply to different types of roads or specific conditions but are not reflective of the standard speed limit on interstate highways in Virginia.