Which of the following is not a requirement for "New" construction pavement?

The assertion that thickness must exceed 6 inches is not a requirement for "New" construction pavement, which makes it the correct choice for this question. In practice, the required thickness for new pavement can vary based on several factors including the road classification, expected traffic load, and materials used. While thicker pavements can enhance durability and load-bearing capacity, it is not universally mandated that all new pavement must exceed 6 inches in thickness.

In contrast, the other aspects listed are generally accepted parameters for new pavement construction. For instance, being placed on a new aggregate or soil base is critical to ensure proper support and structural integrity. Similarly, the stipulation about being placed within a designated travel lane serves to maintain traffic flow and safety. Furthermore, the requirement for pavement to be at least 4.0 feet wide relates to the necessary dimensions for vehicle movement and safety considerations on roadway design. Thus, the thickness requirement being over 6 inches does not apply universally, making it the option that does not align with standard requirements for new pavement construction.