In 2015, the interventions to prepare the archaeological area for opening to the public were completed. In particular, the floor of the inner ambulatory was uncovered and restored, and the area of the arches, travertine steps, and basoli floor surfaces in the hemicycle were put in order. The area outside the building site was also linked to the archaeological area via the creation of a pathway; the steps and the modern spina were also restored. The stratigraphic excavation of the area around the arch of Titus was completed: the interventions undertaken between 2014 and 2015 were concentrated on either side of the central arch occupied by the medieval aqueduct, the Aqua Mariana (of which the reused marble blocks constituting its floor remain in situ ).

The first and third plinth from the east, with rear pilasters, were uncovered, together with another section of the wall in travertine opus quadratum, while only a fragment of the fourth plinth survived on the Roman floor surface. Several marble and brick structures were identified, built on the floor in front of the arch in the late antique-early medieval period, together with a large conduit in brick and marble slabs, probably the Forma Iopia, which crossed the central arch and cut the floor level the arch stands on. In both trenches on either side of the central channel of the Aqua Mariana there were deposits of sand and clay rich in organic and faunal remains datable to between the 9th and 10th centuries, which covered the floor level of the arch up to a certain height. Large and small architectural fragments in Luni marble relating to the upper parts of the monument were found at various levels, down to that on which the plinth bases rested. All of the stone fragments recovered, including some letters from the inscription, have been placed in the piazzale in front of the Torre della Moletta.