Before becoming law and moving on to implementation, PIUs follow long processes that can take years and must involve the participation of society. The timeline shows this path from the first formulation of the PIU ACJ in the 2014 PDE, its temporary halt in 2018 due to the lack of specificity in the housing plans for the populations of the zones of special social interest (ZEIS) and the environmental impacts, to the present day.
The timeline also collects information on other relevant elements in the development of urban plans and shows the continuity of mayors during this period.