Road works signs

Road works one mile ahead

Road works 1 mile ahead

What does this sign mean?

This sign gives a mile of advance warning before road works begin, which is enough distance to change lanes or to leave the road entirely. It is used on motorways and high-speed dual carriageways where late reactions are dangerous. Start planning now: check mirrors, move into the lane that stays open and settle at the reduced speed before you reach the works. The Highway Code specifically warns about lanes closing and lower limits at high-speed road works, and the theory test builds questions around that early planning.

Highway Code references

• Rule 288 from Road works, level crossings and tramways (288 to 307)
• Rule 289 from Road works, level crossings and tramways (288 to 307)

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