UK motorway signs and signals

Motorway signs are blue, and the signals above the lanes warn of hazards ahead. A red X means the lane below is closed.

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Motorway direction signs have a blue background with white words. Signals on gantries or at the side of the road warn of incidents, fog and lane closures that you may not see yet (rule 255).

A red X with red lights flashing means the lane below is closed: you must not drive in it (rule 258). A speed in a red ring is a limit you must obey; a speed without a red ring is advice (Know your traffic signs). Lane control signals on other busy roads use a green arrow, a red cross and a white diagonal arrow (Know your traffic signs).

UK motorway signs and signals

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Motorway signals

Question 1 of 3

  1. A red X lights up above your lane. What must you do?

    • Drive on if the lane looks clear
    • Move safely into an open lane Right
    • Stop under the sign
    • Move onto the hard shoulder

    The right answer is B: Move safely into an open lane

    WhyA red X identifies a closed lane. You must follow the signs to move safely to an open lane, and you must not drive in a closed lane.

    Source: The Highway Code, rule 258

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  2. You see a motorway overhead signal showing 60 inside a red circle. What does this mean?

    • 60 mph is advised but not compulsory
    • The limit applies only to goods vehicles
    • You must not exceed 60 mph Right
    • You must drive at least 60 mph

    The right answer is C: You must not exceed 60 mph

    WhyA speed limit shown inside a red circle is mandatory, so you must not exceed it.

    Source: The Highway Code, rule 261, Know Your Traffic Signs: Motorway signals and variable signs

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  3. A sign on a motorway shows red flashing lights and the closure of all lanes. What must you do?

    • Drive past slowly in the left-hand lane
    • Stop and not go beyond the sign in any lane Right
    • Use the hard shoulder to get past the closure
    • Turn around and drive back along the motorway

    The right answer is B: Stop and not go beyond the sign in any lane

    WhyDo not pass an all-lanes closure sign or use the hard shoulder unless a police or traffic officer directs you.

    Source: The Highway Code, rule 258

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More signs and markings

Sources

Checked on 4 November 2026 against the GOV.UK pages below.

  1. Know your traffic signs: motorway signs, signals and road markings, GOV.UK
  2. Know your traffic signs: tidal flow lane control signs and signals, GOV.UK
  3. The Highway Code, rule 255, GOV.UK
  4. The Highway Code, rule 258, GOV.UK
  5. The Highway Code: light signals controlling traffic, GOV.UK

Contains public sector information licensed under the Open Government Licence v3.0. Traffic sign images are Crown copyright, from the Department for Transport. Sources and image credits.