Busted: 12 common myths about motorway driving

We reveal the truth behind 12 motorway myths, including when to use the hard shoulder and how smart motorway speed limits work.

These motorway myths are a load of rubbish

This year began with a furore about whether smart motorways are safe. Then the coronavirus lockdown led to a different problem: speeding on near-empty roads. 

This week, a driver was clocked at 151mph on the M1 motorway. And in a separate incident, a man was caught at 130mph on the M25. His alleged excuse? He was fleeing the coronavirus

Such behaviour is obviously well outside the law, but other aspects of motorway driving aren’t so clear-cut. Here, with help from LeasePlan UK, we bust 12 common motorway myths. Are they news to you?

Leaseplan's 5 motorway myth-busters

1. Any vehicle can drive in the right-hand lane

On a three-lane motorway, it’s against the law to drive a goods vehicle with a maximum laden weight of more than 7.5 tonnes in the outside lane. The same applies to trailers, including caravans, so don’t use the ‘fast lane’ to get to the campsite quicker. You could be docked three points and fined up to £2,500.

2. The left-hand lane is the lorry lane

Similarly, the inside lane of the motorway can be (and should be) used by any vehicle. Worryingly, a survey by the AA found nearly one in 10 young drivers described the left-hand lane as a ‘lorry lane’, only to be used by those driving HGVs. Drivers using the middle or outside lanes when the inside lane is empty can be hit with an on-the-spot fine.

3. There is no national speed limit on the motorway

We all know there’s a speed limit on the motorway, but many drivers they can get away with travelling at 80mph or 90mph. While cameras typically stick to the ’10 percent plus 2mph’ rule (meaning they’re unlikely to issue fines for speeds up to 79mph on motorways), traffic officers are within their rights to penalise you for driving at anything beyond 70mph.

You should note, too, that a lower 60mph limit applies to vehicles over 7.5 tonnes or towing a trailer (including caravans).

Vauxhalls on the motorway

4. If you break down, you can remove any animals from your car

If you have to pull over onto the hard shoulder, it’s important for you and your passengers to safely leave the vehicle and stand behind the crash barrier. Accidents involving cars stopped on the hard shoulder are fairly common, and the damage can be devastating if a lorry takes out a broken-down car.

However, you should not remove any animals you have in the car. Most of us are attached to our pets, but removing them at the side of the motorway is too dangerous. You don’t know how they’re going to react they might panic and run into the road, causing a pile-up. It’s safer to leave them inside the car.

5. You can stop on the hard shoulder if you are ill or need the toilet

A motorist stopped on the hard shoulder for a ‘comfort break’ is still a worryingly common sight. The hard shoulder is for emergency use only and that doesn’t include a passenger feeling travel sick, needing the toilet or reading a map.

Keep going until you can leave the motorway and find somewhere safe and legal to stop.

Leaseplan's 5 motorway myth-busters

6. Fog lights should be used in poor visibility

The Highway Code states: ‘You MUST use headlights when visibility is seriously reduced, generally when you cannot see for more than 100 metres (328 feet). You may also use front or rear fog lights but you MUST switch them off when visibility improves’.

Some drivers switch their fog lights on at the slightest hint of rain, snow or mist then forget to turn them off. They can be blinding to other drivers and even disguise your brake lights. If you can see the rear lights of the car ahead comfortably, you probably don’t need your fog lights on.

7. Motorway traffic should move over for joining vehicles

If there’s a lot of traffic heading down a slip road and you’re in the inside lane, it might be helpful to indicate and move outwards to create space. Ultimately, though, it’s the job of joining traffic to give way to cars already on the motorway.

Some people are overly cautious when joining the motorway. Joining at low speeds can be very dangerous. If you’ve got a queue of traffic behind, you could put other drivers in a dangerous situation. It’s easier to lose speed than gain it, so build up your speed on the slip road then slot into traffic when you join the motorway.

8. Lorry drivers can see everything

However many mirrors are fitted to lorries, drivers will always have blind-spots. This is particularly true for drivers of left-hand-drive lorries on British motorways, who might struggle to see cars or motorbikes alongside them. If you are overtaking a lorry, spend the minimum time alongside it.

Also, be careful not to change lanes into a lorry’s blind-spot when the driver might be about to pull out and overtake a slower vehicle.

Highways Agency patrol car

9. You should slow down for speed cameras

Average speed cameras are increasingly common in roadworks and on smart motorways. These time how long a vehicle takes to travel between cameras, and can issue fines if average speed is above the variable speed limit.

They don’t work like normal speed cameras, so slowing down when passing below gantries before speeding up again could land you with a ticket. It will also annoy other drivers.

10. Highways Agency traffic officers can stop you for speeding

It’s a common sight: drivers sitting in line behind a Highways Agency traffic officer doing 68mph. Yet while their vehicles might look similar to police cars, they have no powers to pull you over or prosecute you for speeding.

Traffic officers are there to help in emergency situations and have the power to close the motorway when required

11. Smart motorway cameras aren’t always on

On smart motorways, the overhead display screens aren’t always illuminated. However, that doesn’t mean speed cameras are switched off. 

If no speed is displayed, you can assume the standard 70mph limit applies. Exceed that, though, and you risk a flash and a fine. 

Empty motorways due to coronavirus
12. Smart motorway speed limits are advisory

If the motorway ahead is clear and a 40mph, 50mph or 60mph limit is displayed, many drivers assume this is advisory. In fact, that’s only the case if orange lights are flashing.

If the speed limit is ringed by a red circle, it is compulsory – so you could face points and a fine if you go faster. You have been warned.

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Tim Pitt
Tim has been our Managing Editor since 2015. He enjoys a retro hot hatch and has a penchant for Porsches.



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