Which of the following is a requirement for rolling a transverse joint?

The requirement that the mix must be above the old mix on the cold side is crucial for effective bonding and to ensure the integrity of the joint. When constructing a transverse joint, it is essential that the new pavement mix fully overlaps the previously laid material on the cold side. This configuration promotes proper bonding between the two layers and helps reduce the risk of defects such as cracking. The ideal condition ensures that the new mix effectively engages with the old mix, creating a seamless transition that enhances the durability and performance of the roadway.

Other options, while they may present good practices or situations, do not specifically address the fundamental requirement for creating a proper transverse joint. For example, rolling at night or ensuring no traffic is present focuses on operational aspects but doesn’t address the critical requirement of overlapping mix heights. Similarly, whether the mix is cool or requires cutting pertains more to the handling of materials rather than the structural integrity of the joint itself.