What is the minimum speed allowed in a construction zone on a multi-lane divided highway?

In many jurisdictions, the minimum speed in a construction zone on a multi-lane divided highway is often set at 45 mph to ensure safety and efficiency in the flow of traffic. This speed allows vehicles to maintain a reasonable pace while also accommodating the presence of construction activities that may affect road conditions or traffic patterns.

While some areas may have different regulations, establishing a minimum speed helps prevent drivers from going too slowly, which can create hazardous conditions and impede traffic flow. The specific speed limits can vary by state or region, but a typical minimum of 45 mph strikes a balance between safety and maintaining traffic momentum in construction zones, especially on highways designed for higher-speed travel.