
- Location & Date: Italy, 2019-2020
- Description: The extraordinary maintenance on the route Bari – Brindisi - Lecce.
- Project Components: Final design in BIM.
- Client: Anas Spa

The extraordinary maintenance project on the route Bari- Brindisi-Lecce, on behalf of Anas, developed
through BIM methodologies, represents an experience that certifies our level of expertise in
addressing the issue of maintenance of a linear infrastructure with innovative technologies, methods
and processes. Our initiative to opt for BIM was welcomed with great interest by Contracting
Authority – Anas SpA creating a common path based on a direct confrontation on very sensitive
activities and issues. These issues placed in the context of a maintenance project make the ultimate
goal even more important.
The project concerns the construction of new draining road pavement, maintenance of reinforced
concrete structures, the restoration and cleaning of hydraulic works, and the replacement of the
central traffic barrier and side concrete barrier. It also aimed at upgrading technological systems
to the latest standards and install variable messaging and video surveillance systems using
high-resolution cameras connected to the Anas Operations Room.
At the operational level, the starting point was the survey to build the model of the status-quo:
the alignment of the aero photogrammetric survey and LIDAR survey, the reconstruction of
the DTM, and the analysis of the actual consistency of the “triangle model” with the course of
the road platform were key activities to start the design activities.
The actual state model was afterwards used as the base for developing a complete design state model with
the level of detail necessary for the design objectives:
• Graphic drawings;
• Return of the estimated metric calculations;
• Input of project information.
The reconstruction of the overall project model often required the use of advanced parametric operational
modelling methodologies, and in this sense, the synergy between Roads (software used to develop the road
model), Allplan Engineering, Tekla Structures (software used to develop the structures model), Revit MEP
(software used to develop the facilities model), and Grasshopper (algorithmic modelling software) enabled the
return of a quality design product.
Within the templates, all the necessary data was included to clearly define the structure of subdivision of the
project into WBSs and greatly simplify the organization of the metric calculations: therefore, of each object within
the project template, we know the lot, sublot, category of work, the work, the part of the work to which it belongs,
we know all the work required for the intervention, the relevant price list items and all the technical characteristics.
All information was validated through the creation of appropriate information verification groups within the
“container” software of the various multidisciplinary models (Navisworks). This validation involved both the designer
and the Client, at separate times and with different levels of verification.
Another key activity was “clash detection,” which allowed for addressing issues of constructability and
implementation of interventions by returning a full picture of interference and critical design issues, starting from the
Final Design.
The correct management of information flow was the background for the entire project process; in fact, the analysis of
the Client’s guidelines and specific training on the Contracting Station’s CDE (Bentley ProjectWise) allowed the exchange
of information to follow a clear approval process that also significantly improved the organization of project activities.