Hello Allouche OBAME, Thank you for your contributions to OSM. I noticed that a stretch of highway was updated from primary to trunk classification (https://www.openstreetmap.org/changeset/153181257). The OSM Editing Guidelines for Gabon suggest that trunk classification is applied to highway features with N and R routes (https://wiki.openstreetmap.org/wiki/WikiProject_Gabon). In addition, the affected features appear disconnected from the rest of the region’s trunk network. I am curious if you could provide insight or resources for the basis of these classification changes? Looking forward to hearing from you and hope you have a nice day!