
We all know the frustration of being stuck behind a slow driver, crawling along in the middle lane like they’ve got all the time in the world.
But while most of us try to avoid speeding tickets, have you ever wondered if you can get in trouble for driving too slow?
In the UK, there’s no denying that speeding is an issue, but the same could be said for driving too slow. So, are there roads where you can be fined for going too slow? And more importantly, is slow driving actually dangerous? We discuss:

We’ve all had these thoughts while being stuck behind a plodder, and you’ll be happy to know there is a minimum speed limit (but only in certain places).
Unlike maximum speed limits, which apply to all roads, minimum speed limits are rare in the UK. There’s no rule included in the Highway Code that says you must maintain a certain speed everywhere you go.
However, there are some places where driving too slow can be dangerous, such as tunnels and bridges, and this is where minimum speed limits come in.
If you come across a blue circular sign with a white number, this is your cue for a minimum speed limit. At the end of the restriction, you’ll see the same sign with a red line through it.
It’ll be a surprise to learn that there’s no official minimum speed limit on UK motorways. However, that doesn’t mean you can simply dawdle along at 30mph.
Driving too slowly on the motorway can be incredibly dangerous. It can:
- Cause congestion - A slow-moving vehicle can force everyone behind to brake, which can lead to a traffic jam.
- Encourage risky and aggressive overtakes - Impatient drivers might swerve out to overtake you, which can increase the risk of accidents, especially if there’s a lot of traffic.
- Disrupt lane discipline - Slow vehicles hogging the near or middle lane can create confusion and frustration for those looking to drive faster.
It’s these reasons why farm vehicles and low-powered motorcycles aren’t allowed on motorways at all.

Yes. Although most people associate speeding with road safety, believe it or not, driving too slow can be just as dangerous.
- It causes frustration - Slow driving can anger other drivers, leading to tailgating, dangerous overtakes, and reckless driving.
- It disrupts traffic flow - Roads like motorways are designed for fast-moving vehicles in excess of 70mph. If you’re driving way below this, everyone else has to adjust their speed, which creates bottlenecks and congestion.
- It increases accident risk - Drivers expect traffic to be moving at a reasonable pace. Coming across a driver who is going too slow can lead to sudden braking and possible rear-end collisions.
- It leads to hesitation - Overly cautious drivers who hesitate at junctions and roundabouts can confuse other motorists, increasing the risk of accidents.
There’s no specific law in the Highway Code that prohibits slow driving outright, however, this doesn’t mean you’re completely off the hook.
Driving too slowly can be classed as ‘careless and inconsiderate driving’ if deemed to be putting other road users at risk.
What happens if you’re caught driving too slowly?
- You could receive a £100 fine and three penalty points for careless driving.
- In extreme cases (and if slow driving has led to an accident) it could result in prosecution or a driving ban.

If you find yourself driving too slow, here are some tips to stay safe and confident when behind the wheel:
- Stick to the left lane - If you’re more comfortable driving at a steady pace, remaining in the left lane on the motorway ensures faster-moving vehicles can pass you safely.
- Be decisive - Hesitation causes confusion. If you’re approaching a roundabout or junction, commit to your decision when it’s safe to do so.
- Check speed limits - Don’t forget that a lot of roads in the UK have different speed limits. Make sure you’re aware of the speed limit and ensure you stick to it.
- Match the flow of traffic - Without breaking the speed limit, keep pace with the cars around you.
- Build your confidence - If slow driving is linked to anxiety and nerves, a refresher driving course can help you feel more confident. You can also head to quiet neighbourhoods to build confidence.
So, does the UK have a minimum speed limit? Well, yes and no! They do exist, but only in certain areas.
This doesn’t mean you can drive as slow as you want for the rest of the time. Slow driving can be just as dangerous as excessive speed and could land you with a fine if deemed a hazard by the police.
Looking for more motoring advice? We’ve produced a range of guides on UK Road Law, such as Child Car Seats and Guide to Motorway Driving.
We are also one of the UK’s largest car leasing brokers, working with manufacturers and suppliers to find the best leasing deals on the market. For more information, check out our latest leasing deals or call us on 0345 811 9595.