1. A predetermined and unchanging path or course that is regularly followed, especially by public transportation or delivery services
The bus operates on a fixed route every day.
O ônibus opera em um roteiro fixo todos os dias.
2. An established itinerary or schedule that does not deviate from its planned course
The tour company follows a fixed route for all its sightseeing tours.
A empresa de turismo segue um roteiro fixo para todos os seus passeios turísticos.