Firstly, based on what you've said, each section should have a different classification, as there will be different tags needed on the different sections. It sounds as if each section might be "highway=service" or perhaps even "highway=residential" - have a look at how other similar roads are mapped in your country. Also make sure that the "access" tags are correct - this will also vary depending on what country you are in. For the northern section, use an appropriate "paved" access surface tag - see [taginfo](https://taginfo.openstreetmap.org/keys/surface#values) for a list. Perhaps also add a [smoothness](https://taginfo.openstreetmap.org/keys/smoothness#values) tag - see [here](https://wiki.openstreetmap.org/wiki/Key%3Asmoothness) for a description of those. For the middle and southern sections, use an appropriate "unpaved" access surface tag and perhaps also a smoothness tag. Also consider a [tracktype](https://taginfo.openstreetmap.org/keys/tracktype#values) value between grade1 and grade5 (see [here](https://wiki.openstreetmap.org/wiki/Key%3Atracktype) for more information).

Firstly, based on what you've said, each section should have a different classification, as there will be different tags needed on the different sections. It sounds as if each section might be "highway=service" or perhaps even "highway=residential" - have a look at how other similar roads are mapped in your country. Also make sure that the "access" tags are correct - this will also vary depending on what country you are in. For the northern section, use an appropriate "paved" access tag - see [taginfo](https://taginfo.openstreetmap.org/keys/surface#values) for a list. Perhaps also add a [smoothness](https://taginfo.openstreetmap.org/keys/smoothness#values) tag - see [here](https://wiki.openstreetmap.org/wiki/Key%3Asmoothness) for a description of those. For the middle and southern sections, use an appropriate "unpaved" access tag and perhaps also a smoothness tag. Also consider a [tracktype](https://taginfo.openstreetmap.org/keys/tracktype#values) value between grade1 and grade5 (see [here](https://wiki.openstreetmap.org/wiki/Key%3Atracktype) for more information).