London Bus Lanes Explained

East London road skills · 9 min read · Updated 1 September 2026

The sign at the mouth of a bus lane tells you two things: which vehicles may use it and when it operates. If no times are shown, it operates all the time. Everything else about London bus lanes follows from reading that one sign properly, and almost nobody does it at 30mph.

A bus lane is not a permanent feature. It is a rule that switches on and off, and the switch is printed on a blue sign at the point where the lane begins. Almost every bus lane penalty in London is a failure to read that sign, not a decision to ignore it.

The Sign Is The Rule

TfL puts it directly: "Look out for the bus lane sign and thick white line on the carriageway. The sign will tell you which vehicles can use the bus lane and the hours of operation." That is from TfL's bus lanes page.

The Highway Code says the same in rule 141: "These are shown by road markings and signs that indicate which (if any) other vehicles are permitted to use the bus lane. Unless otherwise indicated, you should not drive in a bus lane during its period of operation." That is on gov.uk.

So the sign carries three pieces of information, and you need all three:

• Which vehicles. Usually buses, licensed taxis and pedal cycles. Some lanes also admit motorcycles. Some are restricted to local buses only. The symbols on the sign are the list, and if a symbol is not there, that vehicle is not permitted.
• What days. "Mon to Sat" is common. So is "Mon to Fri". A lane that operates Monday to Saturday is live on a Saturday morning when the road is at its busiest with shoppers.
• What hours. Often a morning and an evening peak, sometimes a single long block, sometimes nothing at all.

No Times Means All The Time

If the sign shows the bus symbol and no times beneath it, the lane operates 24 hours a day, seven days a week. There is no implied overnight exemption and no implied Sunday.

This is the single most expensive misunderstanding on London roads, because a driver who has learned that "bus lanes are peak hours" will look at a blank plate at nine in the evening and read it as a lane that is off. It is on.

Why The Hours Change Stretch To Stretch

Bus lanes in London are set by different authorities solving different problems. TfL sets the lanes on the red route network. Each borough sets its own on borough roads. The hours are chosen to match the traffic pattern of that particular stretch: a lane outside a school runs to different hours than one on a high street, and one feeding a station approach runs differently again.

The practical consequence is that you cannot learn the hours. You can only learn the habit of reading them. A driver going east along Barking Road and then turning onto the A13 has crossed between two regimes, and the fact that the last lane was off tells you nothing about the next one.

It also means the hours you memorised two years ago may not be the hours now. Schemes get changed, extended and removed. The sign in front of you is the current rule; your memory is not.

What You May Still Do

A bus lane is not a wall. Three things are normal and permitted:

1. Crossing it to turn left into a side road or a driveway, or to come out of one. You enter as late as is safe, turn, and leave. What you must not do is join it two hundred metres early and drive along it to the turning.
2. Stopping in it outside its hours, subject to whatever parking and loading rules apply, which on a red route are usually strict and separately signed.
3. Using it when it is not operating, in the ordinary way, as a traffic lane.

There is a fourth situation that is not permitted but is often assumed to be: pulling into an operating bus lane to let an ambulance past, or to get round a stationary vehicle. Neither is a written exemption. In a genuine emergency an authority may exercise discretion over a penalty, but you are relying on discretion rather than on a rule.

What Happens On Test

Driving in an operating bus lane on a driving test is marked under response to traffic signs, which sits eighth on the DVSA's published list of reasons people fail, with road markings seventh.

Whether it is recorded as a driving fault or a serious one depends on what happened as a result. Clipping the end of a lane on the approach to a left turn, with no bus behind you, is usually a driving fault. Driving a hundred metres along an operating lane, or forcing a bus to brake, is a different matter.

The reason it catches strong candidates is that a bus lane offence is almost always committed while concentrating hard on something else.

You are choosing a lane for a roundabout, or looking for a sign in the independent section, and the nearside lane is empty because it is a bus lane, and empty lanes attract cars. There is more on how the marking system works in what the examiner actually marks.

Where East London Learners Meet Them

Candidates testing at Wanstead meet the Cambridge Park lanes on live routes, and candidates at Goodmayes meet the A118 lanes on theirs. Neither is difficult once you have driven them. Both are difficult the first time, at speed, with an examiner beside you.

Bus Gates, And The Habits That Prevent The Rest

A bus gate is not a bus lane

A bus gate is a short section of road that only permitted vehicles may pass through at all. There is no lane to stray into and no queue to be tempted by. There is a sign, a set of markings across the carriageway, and a camera, and if you drive through it you have committed the contravention whether or not you meant to.

They are increasingly common in East London town centres and on streets that have been reworked to discourage through traffic. The reason they matter more than an ordinary bus lane is that the mistake is unrecoverable: with a bus lane you can leave it after twenty metres, and with a gate you are through it before you have understood what the sign said.

The signs that go with them tend to be wordier than a bus lane sign, which is a warning in itself. If a sign has more than about six words on it and you are approaching at 30mph, slow down rather than trying to finish reading it while still moving at that speed.

Three habits that prevent almost all of it

1. Treat an empty nearside lane as suspicious. On a busy London road at five in the afternoon, an empty lane usually has a reason, and the reason is usually painted on a blue sign you have not read yet.
2. Read the plate as one question. You are not memorising times. You are asking: is it on right now. Yes or no, then act.
3. Re-read at every new stretch. The lane you just left tells you nothing about the next one, because the two may have been set by different authorities for different reasons.

None of that is hard. What makes bus lanes catch competent drivers is that the reading has to happen while you are doing something else, which is the same underlying scanning problem as almost every other London-specific rule.

Enforcement After You Pass

TfL states: "Using a bus lane when you are not permitted can delay buses and cause congestion. We may issue a PCN if you drive in a bus lane." Enforcement is by camera, and the cameras run whether or not a bus is present.

Penalty levels are set by regulation and are revised from time to time, so the figure to trust is the one on TfL's penalty charge notice pages at the time you get the notice, not a number quoted second hand.

One thing worth knowing early: a bus lane contravention is a civil penalty, not a driving offence. It does not carry penalty points.

That matters for anyone in their first two years of driving, when six points revokes the licence, but it is not a reason to be relaxed about it, because the same inattention that puts you in a bus lane also puts you in the wrong place at a junction.

Building The Habit

The skill is not knowledge of bus lanes. It is a scanning pattern that picks up nearside signs early enough to act on them. Three things build it:

• Look for the sign at the point where the solid white line begins, which is usually before you can see the lane itself.
• Read the time plate as a yes or no, not as a set of numbers. You are asking one question: is it on now.
• Default to the offside lane when you are unsure, then move over once you have read the sign. Being in the wrong lane briefly is a smaller problem than being in a bus lane.

The same scanning problem shows up on the other two London-specific rules that catch learners here, covered in box junctions explained and 20mph zones in London. Fixing the scan fixes all three at once.

Common questions about bus lanes

More in East London road skills

Published 1 September 2026. Prices and DVSA figures are checked when this page is revised. If anything here has changed, ring us and we will confirm it.