Overtaking Safely: When and How to Pass

Overtaking Safely: When and How to Pass | Shah Driving School. Overtaking safely is a decision, not a reflex. The question is never “can I get past?” — it is “is it safe, is it legal, and is there room to finish?” If any of those three answers is no, you wait. This guide covers the full framework from Highway Code Rules 162 to 169. The three checks before you go, the gaps the Code expects for vulnerable road users, the places where you must not overtake at all, and what to do when someone overtakes you.

The Three-Question Test Before You Go (Rule 162)

Before overtaking, Rule 162 says to make sure of three things:

1. The road is sufficiently clear ahead. You need enough clear road to complete the whole manoeuvre, not just to start it.
2. Nobody is beginning to overtake you. Check your mirrors — and your blind spot — for a faster vehicle already moving out behind you.
3. There is a suitable gap in front. There must be room to pull back in ahead of the vehicle you are passing, without cutting in.

If any of the three is missing, the overtake is off. Waiting is not a failure. It is the correct answer, and on your driving test it is what the examiner wants to see.

How to Pass: Mirrors, Signal, Manoeuvre (Rule 163)

Overtake only when it is safe and legal to do so. When you have decided to go, the sequence is the one you already know:

• Mirrors. Check all three mirrors, and take a quick sideways glance into the blind spot if necessary.
• Signal. Signal when it is safe to do so, so the vehicle you are passing — and anyone behind you — knows your intention.
• Manoeuvre. Move out smoothly, without getting too close to the vehicle you intend to overtake first.

Once you have started, move quickly past the vehicle you are overtaking. Allow plenty of room. Move back to the left as soon as you can, but do not cut in. Wait until you can see the whole vehicle in your interior mirror before pulling back in.

Three habits to unlearn:

• Do not follow another overtaker. Never assume you can simply follow a vehicle ahead that is overtaking. There may only be room for one vehicle, and the gap that was safe for them may have closed by the time you get there.
• Do not rush the return. Cutting in forces the vehicle behind you to brake, and on test it is one of the most common overtaking faults.
• Take extra care at night and in poor visibility. It is harder to judge speed and distance, so gaps that look generous in daylight can be far tighter than they seem. Our stopping distance guide shows how much room you really need at each speed.

The Gaps the Code Expects (Rule 163)

Give motorcyclists, cyclists, horse riders, horse-drawn vehicles and pedestrians at least as much room as you would a car. The Code gives these clearances as a guide:

• Cyclists: at least 1.5 metres when overtaking at speeds up to 30 mph, and more space at higher speeds.
• Horse riders and horse-drawn vehicles: pass at speeds under 10 mph and allow at least 2 metres of space.
• Pedestrians walking in the road (for example, where there is no pavement): allow at least 2 metres and keep to a low speed.
• Bad weather and night: take extra care and give more space to all of them, including in high winds.

If it is unsafe or not possible to meet these clearances, wait behind and do not overtake. That single sentence is the whole point of the rule — the gap comes first, the overtake second. For the full picture of driving near bikes, read our Sharing the Road with Cyclists guide.

When You MUST NOT Overtake (Rule 165)

Some situations are not judgment calls. Rule 165 says you MUST NOT overtake:

• If you would have to cross or straddle double white lines with a solid line nearest to you. The one exception is in Rule 129 (see below).
• If you would have to enter an area designed to divide traffic, surrounded by a solid white line.
• The nearest vehicle to a pedestrian crossing, especially when it has stopped to let pedestrians cross. Our pedestrian crossings guide explains why this rule exists.
• If you would have to enter a lane reserved for buses, trams or cycles during its hours of operation.
• After a ‘No Overtaking’ sign, until you pass the sign cancelling the restriction.

These are legal requirements, backed by the Road Traffic Act 1988 — not advice.

The double white lines exception (Rules 128–129)

Double white lines come in two forms. Where the line nearer to you is broken, you may cross the lines to overtake if it is safe. But you must be able to complete the manoeuvre before reaching a solid white line on your side. White direction arrows on the road tell you to get back onto your side.

Where the line nearer to you is solid, you must not cross or straddle it — unless it is safe and you need to enter adjoining premises or a side road. You may also cross the line if necessary, provided the road is clear. That covers passing a stationary vehicle, or overtaking a pedal cycle, horse or road maintenance vehicle travelling at 10 mph or less.

When You DO NOT Overtake (Rules 166–167)

Beyond the legal bans, the Code lists situations where overtaking is simply not safe. Rule 166 is the headline: if there is any doubt, or you cannot see far enough ahead to be sure it is safe, do not overtake. That covers approaching a corner or bend, a hump bridge, and the brow of a hill — anywhere the road ahead is hidden from you.

Rule 167 adds the places where you might come into conflict with other road users:

• Approaching or at a road junction, on either side of the road.
• Where the road narrows.
• When approaching a school crossing patrol.
• On the approach to crossing facilities.
• Where a vehicle ahead is slowing to stop for a pedestrian crossing from a pedestrian island.
• Between the kerb and a bus or tram when it is at a stop.
• Where traffic is queuing at junctions or road works.
• When you would force another road user to swerve or slow down.
• At a level crossing.
• When a road user is indicating right — even if you believe the signal should have been cancelled. Wait for the signal to be cancelled.
• When you are following a cyclist or horse rider approaching a roundabout or junction, and you intend to turn left. Stay behind. Do not cut across them.
• When a tram is standing at a kerbside tram stop with no clearly marked passing lane.

Read that list once more. Every item on it is a place where something is about to happen — a turn, a stop, a pedestrian, a narrowing — and overtaking removes your ability to react to it.

Big Vehicles Take Longer (Rule 164)

Overtaking a large vehicle is more difficult, and the Code treats it separately:

• Drop back first. This increases your ability to see ahead, and should allow the driver of the large vehicle to see you in their mirrors. Getting too close to large vehicles — including tractors with trailers or other fixed equipment — obscures your view of the road ahead, and there may be another slow-moving vehicle in front of them.
• Make sure you have enough room before committing. It takes longer to pass a large vehicle. If in doubt, do not overtake.
• Do not follow another overtaker. If you assume you can follow a vehicle ahead that is overtaking a long vehicle, and a problem develops, they may abort and pull back in — straight into your path.

The same discipline applies on the A666 St Peter’s Way dual carriageway and on the single-carriageway lanes around Rivington: the bigger the vehicle, the longer the gap you need. On a dual carriageway, the mechanics are different. Stay in the left-hand lane, use the right-hand lane to overtake, and move back left when safe. Our dual carriageway guide covers them in full.

When Someone Overtakes YOU (Rules 168–169)

Overtaking is a two-way street. If a driver is trying to overtake you:

• Maintain a steady course and speed, slowing down if necessary to let the vehicle pass.
• Never obstruct drivers who wish to pass. Speeding up or driving unpredictably while someone is overtaking you is dangerous.
• Drop back to restore your gap. If someone overtakes and pulls into the gap in front of you, drop back to maintain a two-second gap.

And if you are the slow vehicle — especially a large or slow-moving one — do not hold up a long queue of traffic. Check your mirrors frequently, and if necessary, pull in where it is safe and let traffic pass. On narrow Bolton and Atherton roads, that courtesy keeps everyone moving and keeps tempers down.

What Examiners Watch

Overtaking rarely dominates a driving test, but when it comes up, the faults are consistent:

• Gap choice. Going when the gap is too small, or when the road ahead is hidden by a bend or the brow of a hill.
• MSM discipline. Moving out without a proper mirror check, a signal, or a blind-spot glance.
• Cutting in. Pulling back left too early, forcing the overtaken vehicle to brake.
• Overtaking near junctions and crossings. The Rule 167 list is the examiner’s list too — junctions, crossings, queuing traffic.
• Hesitation. The opposite fault: a long, clear, safe gap that you sit behind, holding up traffic, when the Code expects you to go. Rule 169 applies to learners too.

The habit that passes is the habit that keeps you safe: decide early, check properly, commit cleanly, and return to the left without rushing. If the gap is not there, wait — and do not let the driver behind you rush your decision.

Overtaking: Frequently Asked Questions

Can I overtake on the left?

Only in limited cases. You may overtake on the left if the vehicle in front is signalling to turn right and there is room to do so. In slow-moving queues, stay in your lane — but if the queue on your right is moving more slowly than you are, you may pass on the left. Overtaking on the left anywhere else is not allowed.

How much room do I give a cyclist?

At least 1.5 metres at speeds up to 30 mph, and more space at higher speeds. If you cannot meet the clearance, wait behind the cyclist until you can.

Can I overtake a bus at a bus stop?

Not between the kerb and the bus — Rule 167 says do not overtake there. Pass on the offside when it is safe, watching for passengers stepping off and crossing the road in front of the bus.

What if the car ahead is indicating right?

Wait. Rule 167 says do not overtake when a road user is indicating right, even if you believe the signal should have been cancelled. Do not take a risk — wait for the signal to be cancelled.

Should I overtake on a dual carriageway?

Yes — that is what the right-hand lane is for. Stay in the left-hand lane, use the right-hand lane to overtake or turn right, and move back to the left when it is safe to do so. Never overtake on the left except in the queue cases described above.

More questions? Read our frequently asked questions page.

Learn With Shah Driving School

Overtaking safely comes down to three questions: is it safe, is it legal, and is there room to finish? Answer all three honestly, every time, and the rest of the framework falls into place. The gaps, the bans and the blind spots are all there to protect the moment you commit.

If you are learning to drive in Bolton or Atherton, we will practise overtaking on real roads. The dual carriageway on St Peter’s Way, the single-carriageway lanes around Rivington, and the test routes around the Bolton test centre on Weston Street. Book manual driving lessons with Shah Driving School. Call us on 0749 0662 777, or visit our contact page to book your first lesson. The safest overtake is the one you were sure about before you started.

Highway Code rules: Using the road, Rules 159 to 203 (GOV.UK) — Rules 162–169; General rules, techniques and advice for all drivers and riders, Rules 103 to 158 (GOV.UK) — Rules 128–129 and 137–138.