Workers’ safety management in restoration construction sites is an arduous task for designers since
the difficulties given by particular environment and the wide range of works existing in the restoration
panorama. In order to properly face this task, construction site needs to be studied since the
preliminary phase of the design process, especially in restoration where work processes has a great
influence in the success of the intervention. In fact this preliminary study on operational issues is able
to solve a great number of criticalities that affect the project, if discovered during works, in terms of
time, cost and worker’s health and safety. In particular works interference analysis is an important
challenge to void delays due to the overlapping of works in adjacent spaces. In order to facilitate this
task the ongoing research developed an IT based method for construction site interferences analysis.
The main mission of this method is to assist the choice of the right action to solve interference
criticalities. The system is primarily based on the storage of typical construction work places in a
database and it is supported in particular by BIM tools and spreadsheets linked together. That way is
possible to have a simple access to information required for interference analysis such as potential
damage for workers and feasible technical solution. This amount of graphical and informative data
permits to foreshadow interference situations in a restoration work and to automatically find, thanks to
a proper data match, possible solutions of the analyzed interference to be chosen by the site designe
