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Difficulty: MediumSmart Motorways and Active Traffic Management

You are driving in the right-hand lane of a smart motorway. An overhead gantry signal above your lane displays an illuminated arrow pointing downwards to the left. What action should you take?

  1. A
    Leave the motorway at the next available exit slip road
  2. Move over into the lane to your left as soon as it is safe to do soAnswer
  3. C
    Remain in your current lane but brake immediately to reduce speed to 20 mph
  4. D
    Steer across all active lanes immediately and pull onto the hard shoulder

Answer

Move over into the lane to your left as soon as it is safe to do so
On smart motorways and active traffic management sections, an overhead gantry displaying a downward diagonal arrow pointing to the left indicates that the lane is closed ahead. Drivers must move safely into the adjacent lane on the left before reaching the closure or a subsequent Red X signal.

Step-by-Step Solution

1
Interpret the overhead gantry signal displayed directly above the active lane
Identify the diagonal arrow pointing down-left as a lane-change warning indicating lane closure ahead
Highway Code Rule 258 states that a diagonal arrow pointing down to the left or right indicates that your lane is blocked or closed further down the road.
2
Execute the required driving manoeuvre safely according to motorway lane discipline
Check mirrors, signal your intention, check blind spots, and move smoothly into the adjacent left lane when clear
Early and safe lane vacation prevents sudden braking or arriving at a definitive Red X closure at high speed.

Key Concept

Smart motorway overhead lane diversion signals and early lane vacation rules
Estimated Time:45s
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Topics

Smart Motorways and Active Traffic Management

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