I checked the 2022 posts again today:
Actions:
E84 spur
- add "Kavakkoy" spur along O6 between exits 10 and 11 as signed away from mainline as E84 (and thus not 'to' signs)
Agree albeit it's not indicated on the maps in the official documents. It's the grey bit on the "final view" map attached.
E87 option 2
- treat as an unsigned concurrency with E90 as they seemingly cannot sign both routes and went with E90
Yep, I saw that concurrent E routes are NOT signed in Turkey. Thus, I'd go with that option.
Fully agree. E87 is clearly indicated via the bridge in the official documents.
E90 spur option 1E90
- reroute over bridge
Agree since it is signed and very likely (e.g. ferry service discontinued and "..." removed from document) that it must take this route.
E90 spur option 1
- add "Cannakale" spur as its signed, including away from main E90
I prefer this option.
I assume that this was a temporary solution. Official data has E87 on it now, i.e. the route has an E road anyway. Not adding an E90 spur.