Conservative instruments for the historical centre of Mesola (Ferrara). Integrated procedures: survey, documentation and restoration strategies

Ref.: 45
Área temática: 01 Integridad física de los paisajes urbanos históricos
Fecha de recepción: 30/10/2008

AUTORES (* Autor principal)

MAIETTI, Federica * (Italia) - University of Ferrara
BALZANI, Marcello (Italia) - University of Ferrara,
SANTOPUOLI, Nicola (Italia) - University of Ferrara

ABSTRACT

The project concerning the historical centre of Mesola, near Ferrara, has been developed to define
guide-lines useful at the future conservative interventions on the whole historical centre and
particularly on surfaces. The research followed these steps: historical research and comparison
between historical picture and the present condition of the historical landscape; high definition
photographic documentation; metric-morphologic survey (by means of direct, topographic and 3D
laser scanner procedures); macroscopic analyses and colorimetric characterization.
The 3D survey was performed in order to acquire all the metric- morphological data and the
surfaces specifications useful to the conservation and enhancement of the entire historical centre.
The visual recognition of the different materials, of the surfaces specifications and of the states of
conservation was integrated by processing the reflectance data (acquired by the "time of flight" 3D
laser scanner as well as the metric data) and was followed by a more detailed analysis of the
colorimetric data.
Hanoi, The Socialist Republic of Viet Nam, 5-10 April 2009
The data acquired by means of these integrated procedures are stored in a digital data base aimed
at the periodical monitoring of surveyed areas and surfaces and progressive checking of the
interventions of restoration. Digital archives allow making it easier to monitor deterioration
processes and to plan restoration interventions.
The described procedure can be extremely powerful in monitoring the architectural items and
setting up interactive metric databases able to provide at any time information about the surveyed
objects. The results obtained until now have shown that it is possible to organize data bases of a
great variety and nevertheless complementary to one another, so as to allow a global view of the
conservative problem.
One of the main out-come of the project has been the definition of the guide-lines for the
interventions on surfaces and the normative actions for conservation of physical integrity of
historic urban landscape. This procedure is very useful to develop a critical procedure and
operative tools in order to identify, analyze and monitor historical urban landscapes. This
cognitive process is transferable in other historical contexts and produced the following more
relevant guide-lines:
- interdisciplinary competences to preserve the authenticity of the cultural heritage according to
the fundamental principles of minimum intervention, compatibility, interpretability and
reversibility;
- promotion of maintenance like common strategy in conservation to avoid strong interventions,
maintenance of natural assets to enhance the local landscape and use of local materials;
- development of non and minor destructive techniques and monitoring technologies;
- knowledge of decay mechanisms acting on original materials and structures and identification of
critical areas for deeper investigation;
- utilisation of high and innovative technology for no contact surveying and documentation;
- understanding of accuracy and limits of the technologies, also related to different materials
toward a multidisciplinary approach to diagnosis;
- elaboration of databases containing typical damages, testing problems, methods for assessment,
diagnosis and monitoring, case studies, structural models, publications, research projects,
websites, etc.
- creation of a data base to collect "best practice" interventions, innovative successful
technologies, integrated conservative systems, technological transfer, high performance material
and technologies and their interaction.

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