The rules commonly state that a driver must not drive on or over a continuous (solid) edge line except in certain allowed situations. For example, under Australian road rules, you are generally prohibited from driving on or over a continuous white edge line except:
- When overtaking a vehicle turning right or making a U-turn with a signal,
- Driving a slow-moving, wide, or long vehicle that requires crossing the line,
- Complying with police directions,
- Avoiding obstructions,
- Or when turning at intersections or entering/leaving roads, allowing crossing up to 100 meters over the line.
Other jurisdictions similarly restrict crossing solid lines except for turning into or out of side roads, avoiding obstructions, or passing slow-moving vehicles safely. Exceeding these exceptions usually results in penalties and fines. In some places, crossing a continuous line is permitted for a short distance (e.g., up to 100 meters) to enter or leave a road or to transition between different types of road parts. So, the allowable travel distance on or over a continuous edge line is dependent on the specific situation and jurisdiction but can be up to about 100 meters when making turns, entering/exiting, or avoiding obstructions legally. Otherwise, travel over a continuous edge line is prohibited. This is a common rule in Australia, the UK, and similarly regulated countries with slight variations in amounts and exceptions. Always check local traffic regulations for precise limits and exceptions.
