Road markings – meaning of broken white longitudinal lines What is the correct interpretation of broken (discontinuous) white longitudinal pavement lines for drivers?

Introduction / Context:
Pavement markings communicate lane usage and overtaking permissions. Broken white longitudinal lines are among the most common road markings and must be understood for safe operations.

Given Data / Assumptions:

• Broken (dashed) white line separating same-direction lanes or guiding a single carriageway.
• Normal daylight and visibility conditions; other signs and markings may also apply.

Concept / Approach:
Broken white lines indicate that lane changing or overtaking is allowed when safe, after adequate observation and signaling. In contrast, continuous lines typically prohibit crossing.

Step-by-Step Solution:

Verification / Alternative check:
Traffic control manuals uniformly classify broken white lines as permissive lane lines; solid lines are restrictive or warning-based.

Why Other Options Are Wrong:
Option A is incomplete (does not specify permissive crossing). Option B contradicts standard meaning. Option D cannot be true since B is incorrect. Option E is inapplicable.

Common Pitfalls:
Crossing near intersections or pedestrian crossings without extra caution; ignoring additional signs that might temporarily restrict overtaking.

Final Answer:
They may be crossed over at the driver’s discretion when safe