obligatoryroad
nounUK /əˈblɪɡətəri rəʊd/
US /əˈblɪɡətɔːri roʊd/
A road you must use because there is no other way to go.
The only obligatoryroad to the village was blocked by snow.
OTHER MEANINGS
2. A path that rules or laws say everyone must take.
Drivers had to follow the obligatoryroad marked by the signs.
3. A way of doing something that everyone is expected to follow.
Learning the safety rules is an obligatoryroad for new workers.
4. A route that cannot be avoided when traveling between two places.
The mountain pass is an obligatoryroad for trucks heading north.