Visual explanation · Lane change
The gap closes before you steer
Question recap: A car starts closing your planned gap before you change lanes.
Correct answer
Hold your lane and check the gap before moving.
Why this is correct
The useful gap is the one available at the lateral movement. A vehicle approaching faster can reach the space sooner than your first look suggested.
Hold a stable course while checking. If the move no longer fits, let the vehicle pass and look for another opportunity.
Visual breakdown
What the examiner checks
Mirrors and blind area
Giving way when moving sideways
Available spaceCommon mistake
Treating the indicator as a reason to finish the move.
Related DTD content
Understand this situation
3.1 Mirrors and the blind spot. Use this section to prepare a concrete practice point for your next lesson.
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Another DTD explanation of this road decision and the mistake behind it.
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Learning basis: CBR Rijprocedure B, July 2026, 3.5 Lane changes: observation and giving way, printed page 40. CBR source and current editions. The labels above are DTD’s plain-English explanation of this scene. The illustration is a learning scene; follow the actual road layout, signs and traffic. DTD is independent and is not endorsed by CBR.