Large or slow vehicles: phone to cross sign

What it means

Drivers of large or slow vehicles must phone and get permission to cross.

At automatic level crossings, drivers of large or slow vehicles must phone before and after crossing.

The plate on the sign defines large and slow vehicles, for example by length, width, weight and speed.

Where you'll see it

At automatic level crossings.

Rules to know

• At automatic level crossings, drivers of large or slow vehicles must phone before and after crossing.

  Know Your Traffic Signs, p. 29

• Never stop or park on, or near, a level crossing.

  The Highway Code, Rule 291

Common mistakes

• Mistake: Thinking it only applies to lorries.

  Instead: Check the definitions on the plate: slow vehicles such as some farm machinery are covered too.

Test yourself

Recalling the answer helps it stick. Pick an answer to see how you did.

Question 1 of 1

What does this sign mean?

• ALarge or slow vehicles must phone for permission
• BA pedestrian zone: no vehicles except as shown
• CBuses use a lane against the flow of traffic
• DNo stopping at any time on a red route

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