What is the maximum allowed speed on a lane unless otherwise stated?

The maximum allowed speed on a lane, unless otherwise stated, is 90 km/h. This speed limit applies to many rural roads and open roads in Belgium where specific restrictions are not in place. The rationale for this limit is to balance safety with reasonable travel times on less congested roadways.

In urban areas, for example, the speed limit is usually lower, often set at 50 km/h to ensure the safety of pedestrians and cyclists. Conversely, higher speed limits may apply on motorways, typically allowing speeds of 120 km/h or more. Therefore, 90 km/h serves as a standard limit for guidance on various road types outside of urban centers, unless indicated otherwise by signage that specifies a different speed limit.