Unless otherwise posted, what is the maximum speed limit on gravel highways outside of cities?

The maximum speed limit on gravel highways outside of cities, unless otherwise posted, is 60 km/h. This speed limit is established to ensure the safety of drivers and the integrity of the roadway. Gravel surfaces can be less stable and more prone to changes in condition due to weather or usage, which means that driving too fast can increase the risk of losing control of the vehicle. A speed limit of 60 km/h helps to provide a balance between reasonable travel times and the need for safety on less stable surfaces. It is also vital for drivers to adjust their speed based on current road conditions, visibility, and traffic to maintain safe driving practices.