## 3 Results and Discussion
A network service area is a region that encompasses all accessible roads (roads within a specified impedance). Service areas related to the city of Medjez El Bab indicating path accessibility according to time at 5, 10, 15, 20, and 30 min were extracted (Figure 16) and that has enabled the organization of service missions according to their duration. Figure 15: Analysis of the shortest path between the source station and the transformer station. It is quite clear that the analyses of electrical networks and the exploitation of their data, as well as the management of electrical distribution, are significantly better with the use of GIS spatial and network analysis tools. Moreover, the obtained results will be crucial in the case of a power failure or in the case of maintenance work and ensure the rapid resolution of technical problems and can also be used in future urban planning. Similar procedures will produce time, material, and organizational gains compared to conventional ones. Currently, the electrical GIS system mainly adopts a two-dimensional electronic map to show the electrical network and related information. However, it is difficult to meet the requirements of the panoramic display due to the lack of a vertical viewing angle. A 3D visualization will be beneficial to realize a panoramic visualization of data in a 3D virtual environment [46]. A three-dimensional representation of the study area as well as the electrical networks was also carried out, providing a realistic visualization of our study area. Web and 3D Web GIS applications offer users the possibility to consult the made products by the internet. The client side is a spatial data visualization interface (Map Viewer) based on GeoExt. This interface allows adding WMS layers from GeoServer and an API such as Google Maps. In our study, we were able to integrate Google Earth and its 3D renders into the web pages thanks to the Google Earth plugin and JavaScript API. We were able to create points and lines, to perform the projection of images, to add 3D models, and to import of KML files. We have also been able to develop advanced 3D mapping applications. The client side is a spatial data visualization interface based on the Ext.ux.GEarth code. This interface allows us to add KML layers from the Google Earth community and from an API such as Google Maps. Through the elaborated website, we were also able to create a link between Google Maps and the photos of the power poles with an explanatory video sequence to collect the maximum amount of information about the electrical network. on the interactive windows of the website, it is possible to establish a display of different scales: a display at the level of the delegation with a scale of 1:25,000 and a display at the level of the municipality with a scale of 1:5000. Web GIS and 3D Web GIS demonstrated many advantages over traditional GIS, enabling the possibility of consulting cartographic products via the Internet. According to [PERSON] and [PERSON] (2021) [47], traditional GIS services cannot meet the needs of professional energy applications. The integration of GIS data into web platforms will significantly improve the use of the data and, therefore, the use of the applications. [PERSON] et al. (2016) [48]  
Figure 16: Polygons representing service areas of 5, 10, 15, 20, and 30 min from Medjez El Bab City. pointed out that information gaps restrict the dissemination of sustainable electrification technologies and that interactive WebGIS tool could address these gaps. The developed database was ultimately used to set up Web GIS and 3D Web GIS applications and a website with multiple interfaces. This can be used to include thematic data, spatial analysis, network analysis scenarios, 3D modeling, and many others interactive applications in the study area. With the developed website, we were also able to link Google Maps and the photos of the power poles with an explanatory video sequence to gather as much information as possible about the electricity network.