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Question

Difficulty: MediumLane Discipline and Positioning

Road markings ahead indicate that your current lane will soon become a mandatory right-turn-only filter lane, but you need to continue straight ahead. In what sequence should you carry out the actions to safely move into the adjacent straight-ahead lane?

  1. 1Check your interior and right door mirrors to evaluate the speed and distance of following vehicles.
  2. 2Signal right in good time to communicate your intention clearly to other road users.
  3. 3Perform a brief blind-spot check over your right shoulder to confirm no road users are alongside.
  4. 4Steer smoothly into the straight-ahead lane while matching your speed to the flow of traffic.
  5. 5Cancel your direction indicator once your vehicle is fully settled in the new lane.

Answer

The correct sequence is: Check interior and right door mirrors, Signal right in good time, Perform a brief blind-spot check over your right shoulder, Steer smoothly into the straight-ahead lane while matching traffic speed, and Cancel your direction indicator once established in the new lane.
Under Highway Code Rules 137, 138, and the standard Mirrors-Signal-Manoeuvre (MSM) routine, a driver wishing to change lanes must first check interior and door mirrors to assess surrounding traffic, signal their intention in good time, conduct a final blind-spot check to clear unobserved areas, smoothly manoeuvre into the chosen lane, and promptly cancel the signal once established.

Step-by-Step Solution

1
Check interior and right exterior door mirrors.
Assesses the presence, speed, and distance of following vehicles.
The Highway Code requires drivers to establish situational awareness before giving signals or changing speed and position.
2
Apply the right direction indicator.
Gives advance notice to other road users of the intended lane change.
Early signalling allows surrounding traffic to anticipate the manoeuvre and adjust accordingly.
3
Check the right-hand blind spot with a quick over-the-shoulder glance.
Ensures no vulnerable road users or overtaking vehicles are hidden in mirror blind spots.
Mirrors cannot eliminate all blind spots, making a physical check essential immediately prior to steering across.
4
Steer smoothly across into the adjacent lane while adjusting speed appropriately.
Completes the physical lateral transition into the chosen lane.
Gradual and controlled movement maintains vehicle stability and integrates safely with traffic.
5
Cancel the indicator signal.
Avoids showing a misleading signal to oncoming or following drivers.
Leaving an indicator on creates confusion about future intentions at subsequent junctions or crossings.

Key Concept

Mirrors-Signal-Manoeuvre (MSM) routine for safe lane positioning and discipline
Estimated Time:1m 0s
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Topics

Lane Discipline and Positioning

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