Alberta Written Drivers Learners Test Practice

A double solid line in the center of the road indicates that passing is prohibited in both directions. This marking is designed to enhance safety by discouraging overtaking maneuvers where visibility may be limited or where passing could be dangerous. The presence of a double solid line suggests that it is unsafe to cross the lines for any reason. Drivers are expected to adhere to this restriction to maintain safety on the roadway. This regulatory marking helps prevent accidents by keeping vehicles in their respective lanes and reducing the potential for head-on collisions.

The other options don't accurately reflect the purpose of double solid lines. For instance, the idea of allowing passing only on the right or left contradicts the established law represented by the double solid line, and the notion of roadworks ahead does not pertain to lane markings but rather to construction alerts which are communicated through different signage.