# I-BIM Applied in Railway Geometric Inspection Activity: Diagnostic and Alert
## 7 Conclusions
### BIM Benefits in Railways  
For other real railway projects, the I-BIM model of the inspected segment must be first modeled, using the generated families of rail parametric objects, complemented with all the inspection parameters required to perform the geometric inspection activity. This functionality can easily be implemented by the railway engineer enterprises, supported by the direct access of the generated inspection Dynamo script, used as a Revit plug-in.  
This study focused on implementing BIM methodology in railway projects, aiming to enhance inspection processes and maintenance activities throughout the infrastructure lifecycle:* Using the Revit BIM modeling parametric system, an I-BIM railway track model was created, focused on the essential components required for the geometric quality assessment. New parametric families were defined for sleepers, fastenings and rails, considering not just an accurate geometry but also the addition of new parameters related to the inspection work;
* A Dynamo script was developed allowing users to transfer the collected inspection data into the railway model; to associate the data to the respective parameter of the objects, used in the modeling process; and to perform color coding according to the alert level standards;
* The application of the new script, as an innovative approach, allows engineers to enhance optimized inspection planning, with adequate and accurate maintenance prevention, efficient streamlining workflow and a global time-saving measure.  
Despite some difficulties and delays in the transport infrastructure area in comparison to other areas of application of BIM methodology, its adoption is very promising and positive. The present study encourages BIM implementation in infrastructure engineering projects and companies. BIM implementation in railway infrastructure inspection was successfully demonstrated in the text, and the main benefits were highlighted supporting the good results obtained by applying the created script. To perform the study case, an I-BIM model was first created, and then enriched with the collected inspection data. This aspect supports the main concept of BIM, which is the centralization of all information generated, added and actualized in a unique digital model of the infrastructure in analyses. The enriched BIM model allows the user to manipulate its database, leading to more efficient project coordination, management and maintenance.  
In the field of railway maintenance, the use of BIM modeling is very limited. The study presents the modeling process required for a correct representation of the components of the rail track. This step was innovative because, normally, the limitation in the development of I-BIM models for projects under analysis and maintenance is due to the lack of parametric objects in the libraries of BIM systems of most frequent use. Thus, new objects had to be created. Additionally, the proposal to develop a Dynamo script, with functionality as a Revit plug-in and with the ability to analyze data and present an alert level, constitutes a significant advancement in support of the railway maintenance activity. It should also be noted that parameters and values can be changed so that the script can be easily integrated into railway design offices with a different gauge. The applicability of the script is thus not limited to the example presented but also to other concrete situations, requiring only some adjustments in the Dynamo programming.