Dear Ximena,

Hope you find the following links useful for your research:

https://files.acrobat.com/a/preview/42602412-edb3-4618-ac43-af79e78eee77

http://www.sciencedirect.com/science/article/pii/S1877042814055359

Thank you Aryan. The first document I already have. I will review the other and I suggest http://cdn.intechopen.com/pdfs/45404/intech-designing_urban_squares.pdf

Best regards, Ximena

I did a research about the transformation of  the spatial structure of Cairo and Tripoli over time including their Plazas "main  public spaces". we focused on the the relationship between the plazas and the spatial core of the spatial structure over about 100 years. We used space syntax theory to track the spatial changes over time. I may share you link the file if this is helpful.

Thank you Hadi. Please do share whatever you can share. Some of the changes I have found is that main plazas had designs of parks with trees  in the late XiX up until mid XX century (french style parks) and currently plazas are more open spaces with only floor designs. They are to gather people. I dare to say that after Pei's Louvre project there has been projects that propose to use the plazas for underground institutional buildings; underground parking lots. 

I studied the evolution of the two main plazas of the 20th-century Salerno (Campania, Italy): Piazza San Francesco d'Assisi and Piazza Malta.

Thanks to an archival investigation, it has been possible to understand how the plazas were contemplated and identify the reasons that led to changes in the originally designed conformation over the years. Besides it has been seen how urban transformations are closely linked to the history of the building heritage that characterizes the aestethics of the plazas and makes them exclusive open spaces. 

Urban rehabilitation policies should start from this kind of study in order to keep alive the memory of sites being the result of a profound renovation process. I hope that we will continue to do so, in order to design urban rehabilitations in accordance with the testimonial values of cities.

Best regards from Italy!

Thank you Fabio! Is there anything available to read?

Nothing in English at the moment.

Changing the use of historic buildings due to the preservation of the building can lead to the dynamism of historic buildings. The abandonment of historical monuments and the lack of proper use of them will cause their destruction as much as possible, but the reality is that today the historical monuments that were used in their time, can not be used as in the past. With a few changes in the historical buildings, they can be used optimally and attract tourists. In changing the uses, the buildings are not destroyed, but in the direction of the initial use of the building, the existing changes are made. Changing the use of historic buildings will save this building from certain death. A place that seems to be successful in land use change that can also be economically successful and bring economic values ​​to these works and buildings. A monument is alive and dynamic despite the presence of people, wherever the attraction remains stagnant, the rate of its destruction increases, but a proper change of use based on society and the present can revive an abandoned monument.