Two hatched carriageway areas have chevrons. One has a broken boundary line and the other a continuous boundary line. Which rule distinguishes them?
Both areas may always be used as ordinary traffic lanes.
The broken boundary may be crossed only when necessary and safe, but the continuous boundary only in an emergency.✓Correct answer
The continuous boundary may be crossed when safe, but the broken boundary never may.
Both boundaries may be crossed only to overtake a slow vehicle.
Explanation
A driver may enter the broken-boundary area only when doing so is necessary and safe, whereas a continuous boundary excludes entry except in an emergency. Treating both as optional lane space removes the stronger protection created by the solid edge.