3.4. Developing the database management system (DBMS) in ArcGIS
The first phase of the present study required using the GIS tool to build up a spatial database that contains detailed digital information about the routes in terms of time. This step involved setting up the attribute table by adding the variables identified in the methodology, which will be applied in the context of this study to create attribute tables for all the roads. First is the length factor, which represents the distance for each of the selected road networks. Preparing the results in this section required some calculations in ArcGIS software with geometry analysis. The information about distance for all the roads is derived from digitizing the road networks as spatial data set.