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UK Road Signs

Regulatory sign

With-flow bus lane ahead sign

With-flow bus lane ahead sign: a blue square with a local bus, a bicycle, the word taxi and a broken line marking the lane
Sign image: Department for Transport, © Crown copyright

What does the With-flow bus lane ahead sign mean?

Shows a bus lane ahead running the same way as traffic, and which other vehicles may use it, such as cycles and taxis.

Also known as: Bus lane ahead sign

What it means

A with-flow bus lane starts ahead. The vehicles shown may use it.

The sign shows a lane ahead reserved for buses, running in the same direction as the traffic. Symbols show any other vehicles allowed in it, such as pedal cycles and taxis.

The word local on the bus means only local service buses may use the lane. Hours of operation may be shown; with no times, it operates at all times.

Where you'll see it

On the approach to the start of a bus lane.

Rules to know

  • The sign shows a with-flow bus lane ahead that can also be used by the vehicles shown. Hours of operation may be shown; where no times are shown, the bus lane operates at all times.

    Know Your Traffic Signs, p. 35

  • The word 'local' on the bus symbol means the only buses that may use the lane are those running a local service.

    Know Your Traffic Signs, p. 35

  • Other vehicles may enter and stop in a bus lane to load and unload unless signs alongside the lane indicate otherwise.

    Know Your Traffic Signs, p. 35

  • Unless otherwise indicated, you should not drive in a bus lane during its period of operation.

    The Highway Code, Rule 141

Common mistakes

  • Mistake: Driving in the lane outside its hours without checking the sign.

    Instead: Read the times. With no times shown, the lane is in force all the time.

Test yourself

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Question 1 of 1

What does this sign mean?

Blue square sign with a white bus marked local, a bicycle and a word, beside a lane edged by a broken line

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© Crown copyright. Free to reuse under the Open Government Licence v3.0, as long as the sign is reproduced accurately and not in a misleading context.

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Sources

Sign image: Department for Transport, Traffic sign images (diagram 958). © Crown copyright, reused under the Open Government Licence v3.0.

Last reviewed 11 October 2026. This page explains the sign in our own words; for the full rules, see The Highway Code. How we source and check content