Among the most complex issues addressed in the design and construction management are reported:
a) The implementation timing, subject to the "EXPO 2015" opening, with the design and construction in just 12 months of temporary parking (110,000 square meters), plant infrastructure and connection (20,000 square meters).
b) The infrastructural works carried out in the water table presence and executed with dewatering and waterproofing interventions during excavation by means of the wells preventive execution for the continuous extraction and groundwater pumping.
c) The works were carried out under heavy traffic and with numerous infrastructural connections with other road works (night closures were also necessary for the launch of two pedestrian walkways with a span of about 40 m).
d) Interference with the neighbouring building sites and the "Expo Village", which hosted exhibitors during the event.
e) The earth and rocks from excavation management, conducted through a methodology shared with the Regional Environmental Observatory, which involved the handling of about 800,000 cubic meters of materials.
f) Coordination for the underground services realization in the presence of multiple interferences, with the works scheduling between the various contractors and service management bodies.
g) The green areas early planting to ensure an immediate aesthetic effect, while ensuring proper rooting.