mandatoryroute
nounUK /ˈmæn.də.tər.i ruːt/
US /ˈmæn.də.tɔːr.i ruːt/
A mandatory route is a path you must take and cannot choose another way.
The school bus follows a mandatory route every morning.
OTHER MEANINGS
2. A road that all vehicles are required by law to use.
Trucks must follow the mandatory route around the city center.
3. A set path in a game or race that players must stay on.
In this race, the mandatory route goes through the forest.
4. A required series of steps to finish a process.
The application has a mandatory route from form to approval.