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Is it okay to drive well below the speed limit on a main road?

695 replies

ScarboroughFairy · 01/02/2026 23:38

Hi all, tomorrow I’ll be driving on a main road where the speed limit is 60mph, but I’m thinking of sticking to 40mph. I know it’s well under the limit, but I just feel safer at that speed. Does anyone else do this

OP posts:
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DotAndCarryOne2 · 02/02/2026 08:41

WomenAreNotForSale · 02/02/2026 08:38

More likely than what? This is a nonsensical statement.

More likely than if driving at an appropriate speed for the road and conditions ?

Willowywisp · 02/02/2026 08:41

Womaninhouse17 · 02/02/2026 08:33

There's not a law about driving too slowly - you could drive at 20 if you wanted to as long as you weren't holding up other traffic. The problem is if you are causing a nuisance for other road users.

You've not read the thread, have you? The law has been cited already and yes, there is a law about driving too slowly. I'm not posting it again because it's all there in the thread already or you could just look it up yourself.

WomenAreNotForSale · 02/02/2026 08:42

The A9 is tricky partly because it shifts from dual carriageway to single repeatedly. And because of the mix of traffic - lots of tourists plus lots of haulage plus commuters, all going at different speeds, and trying to overtake before the dual bit runs out.

Driving at 40 is okay if people can overtake you easily, but not if they can"t.

Interested in this thread?

Then you might like threads about this subject:

Willowywisp · 02/02/2026 08:42

OhBuggerandArse · 02/02/2026 08:24

Why would you be driving on the A90 rather than the A9?

We established she meant the A9. Although the A90 might be a better option for her tbf.

gmgnts · 02/02/2026 08:43

Please take the train or the bus and stay off the road in your car.

WomenAreNotForSale · 02/02/2026 08:44

DotAndCarryOne2 · 02/02/2026 08:41

More likely than if driving at an appropriate speed for the road and conditions ?

Could be - comment as written didn't make sense.

hobbledyhoy · 02/02/2026 08:47

I can understand why you might be anxious about driving the A9, there have been many crashes on it but the main reason for that is that it’s single carriageway and if people drive slowly it causes frustration and people then take risks. People are not driving at 60 on that road, it’s more like 70/80. There’s a reason they’ve been talking about dualling it for years.
If you’re planning to drive at 40 on that road it will cause major congestion and I don’t think will do your confidence any good. Maybe rethink your travel plans and then invest in some advanced lessons to build your confidence.

Fulmine · 02/02/2026 08:49

ScarboroughFairy · 02/02/2026 01:58

i didn't realize i would get so many responses at this time of nightI've got, had so much anxiety about it. I've not got enough sleep. And that's the worst thing for a long journey. I'll see how I feel in the morning. I doubt I can get public transportat short noticei might not go at all or i'll set off later

According to TheTrainline, you should have no problem getting a seat on a train from Inverness to Edinburgh and back.

gmgnts · 02/02/2026 08:49

If you're worried about getting to your meeting once you reach Edinburgh by train (and believe me, it is a hellish city to have to drive through - makes the A9 look like a walk in the park) just google your destination and get directions from either Waverley or Haymarket stations; Edinburgh has a brilliant public transport system of buses, trams, taxis and local trains, so you'll be able to get to your meeting easily.

Samesame47 · 02/02/2026 08:50

Driving at that speed would impact other road users.
I’m pretty sure if you drove 40 in 60 in a driving test you would fail.

Alpacajigsaw · 02/02/2026 08:52

Of course you’d be able to get on a train :/ it’ll probably be a lot faster than driving at a snails pace anyway

GabriellaK · 02/02/2026 08:53

ScarboroughFairy · 01/02/2026 23:38

Hi all, tomorrow I’ll be driving on a main road where the speed limit is 60mph, but I’m thinking of sticking to 40mph. I know it’s well under the limit, but I just feel safer at that speed. Does anyone else do this

If you need to ask this you don't sound capable of making decisions on the road conditions and traffic. You don't sound confident as a driver and my advice is you take some lessons again to build your confidence.
I don't know anyone who decides in advance what speed they will drive at.

Speed limits are not a goal to drive to.
They are the maximum speed.

You need to drive according to the traffic, weather, and whatever else is going on.

You risk annoying other drivers if they can't overtake and this in itself can cause accidents if they get impatient.

DotAndCarryOne2 · 02/02/2026 08:53

Womaninhouse17 · 02/02/2026 08:33

There's not a law about driving too slowly - you could drive at 20 if you wanted to as long as you weren't holding up other traffic. The problem is if you are causing a nuisance for other road users.

There is something called appropriate speed for the road and conditions - if you drove at an inappropriate speed on your driving test, you’d fail. Driving too slowly can be considered driving without due care and attention, and without reasonable consideration for other road users - regardless of whether you cause an incident or not. You can be fined and receive penalty points, so there is effectively a law against it.

And some roads, or sections of them, have a minimum speed limit, indicated by blue and white signage. It’s an offence to drive below the minimum.

3within3 · 02/02/2026 08:53

ScarboroughFairy · 02/02/2026 01:12

i wonder whythat is that crashes usually happen within five miles of the home

It’s because most journeys are within 5 miles of home anyway

GabriellaK · 02/02/2026 08:54

Samesame47 · 02/02/2026 08:50

Driving at that speed would impact other road users.
I’m pretty sure if you drove 40 in 60 in a driving test you would fail.

You wouldn't fail.

The road from where I live is a narrow country road with a speed limit of 60.
It's madness at times to drive at 60.

fishfingerbutty · 02/02/2026 08:55

Sorry, but why would you do that?
Would it really not concern you to have a long line of traffic behind you, all being delayed by your odd driving?

GCAcademic · 02/02/2026 08:59

GabriellaK · 02/02/2026 08:54

You wouldn't fail.

The road from where I live is a narrow country road with a speed limit of 60.
It's madness at times to drive at 60.

I live in a similar area, but that's quite different to doing 40 on a major trunk road, as the OP is proposing to do.

Alpacajigsaw · 02/02/2026 09:01

I don’t think some posters realise what this road is. It’s not just a “main road”. It’s the arterial route connecting the north of Scotland to the major cities in the central belt. Pottering along it like Miss Daisy is wholly inappropriate and dangerous.

skilpadde · 02/02/2026 09:02

GabriellaK · 02/02/2026 08:54

You wouldn't fail.

The road from where I live is a narrow country road with a speed limit of 60.
It's madness at times to drive at 60.

This isn’t about your narrow country road, though, or any others (we have plenty of them in Scotland).

The OP is suggesting driving main arterial routes in Scotland at 40mph, for several hours.

Doing so will definitely attract the attention of the police.

Purplecatshopaholic · 02/02/2026 09:03

Changingplace · 01/02/2026 23:42

Unless the driving conditions are bad no it’s dangerous because other drivers will be driving the speed limit and be coming along doing 60 behind you and trying to overtake all the time.

Why would your purposefully plan to do this? Surely the normal thing to do is judge driving conditions as you’re driving?

Absolutely this. Any driving instructor will tell you going too slowly is dangerous. Only drive significantly lower than the speed limit if the road conditions merit it. Why on earth would you drive at 40 in a 60? Defo dangerous. If you are an anxious driver, tackle that.
ps just seen your update - I know that road well, and yes, its not great, especially if you are a nervous driver. Lots of tourists not sure where they are going, lorry drivers who do and want to get there, lots of locals who do know the road and hate slow drivers.. Going deliberately slowly is as bad an idea as going too fast. Again, if you are a nervous driver, consider going early, or better yet, take public transport (plenty of buses do Inverness/Edinburgh).

Ophy83 · 02/02/2026 09:05

It's a beautiful relaxing train journey, why not just do that ( I've never been unable to get a ticket on the day). Also saves the hassle of finding somewhere to park in Edinburgh!

Jamesblonde2 · 02/02/2026 09:06

It’s dangerous. No you shouldn’t be doing it. What’s wrong with you?!

Willowywisp · 02/02/2026 09:07

hobbledyhoy · 02/02/2026 08:47

I can understand why you might be anxious about driving the A9, there have been many crashes on it but the main reason for that is that it’s single carriageway and if people drive slowly it causes frustration and people then take risks. People are not driving at 60 on that road, it’s more like 70/80. There’s a reason they’ve been talking about dualling it for years.
If you’re planning to drive at 40 on that road it will cause major congestion and I don’t think will do your confidence any good. Maybe rethink your travel plans and then invest in some advanced lessons to build your confidence.

There are average speed cameras in place - people are not doing 80. Although, if stuck behind the OP doing 40 for miles, they may well be doing 80+ to make sure they get past her at the dualled stretches before they revert to single again.

NeedSleepNowww · 02/02/2026 09:08

Andouillette · 02/02/2026 02:04

Do you mean the A9? In which case please do not drive at 40! Most of the crashes on that road are caused by frustration because there's so much of it where passing is impossible/dangerous so people take huge risks. Obviously they shouldn't but people crawling along at 40 does not help at all!

What I was about to say.

You can’t be doing 40 OP. You’ll feel intimated by drivers over taking you constantly, you’ll get angry drivers tailgating you.

At some point you will reach a lorry, just drive behind that for as long as you can.

Balloonhearts · 02/02/2026 09:08

No. Its dangerous to drive at much slower speed than the rest of the traffic. If you can't drive faster than 40 on a bloody A road, you really have no business driving at all. Get some lessons for Christ's sake. You're driving a large, heavy machine that can easily kill people, even at 40. You need to be confident and capable handling it in all situations.

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