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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To think cars should legally have speed limited to 70mph?

221 replies

clairemcnam · 23/02/2019 14:52

The upper speed limit in the UK is 70mph. So why does the Government not just pass a law saying that all cars should have a speed limited so that is the fastest it can go? Sure I know some people would disable it, but in general it would stop most people going faster than 70mph.

OP posts:
ArmchairTraveller · 23/02/2019 22:23

That’s odd, because there was an entire advertising campaign stating the exact opposite.

FuckItFriday · 23/02/2019 22:23

Fully aware of that.

It has little relevance when discussing motorway speed.

Singletomingle · 23/02/2019 22:38

ArmchairTraveller advertising campaigns are always true? At 20 a child is dragged under the car and crushed at 30 a child is flipped over the car and will likely suffer leg injuries and survive. FuckItFriday at motorway speeds doing 90mph and hitting a vehicle doing 70mph is far less dangerous than doing 70 mph and hitting a vehicle doing 40mph.

Fatted · 23/02/2019 22:43

Because then the government would not get the large amount of revenue it generates every year from idiots who get caught breaking the speed limits.

Besides you are doing well to find somewhere that still has a national speed limit. Everywhere round where I live is 50 to reduce emissions. Not one single bit of dual carriage way is still 70.

SheWoreBlueVelvet · 23/02/2019 23:01

My experience of driving motorways across the country for long stretches ( 7+hours) is that it doesn’t what speed you do as long as you pay attention to your driving.
People that lose interest and sit in the middle lane are a real worry as they bugger up everyone in the inside lane ( can’t undertake) and everyone in outside lane ( you need to accelerateto overtake) needs to do more than the NSL to overtake. So you frustrate both lanes.
70 is pretty slow for cars in this day and age.

malmi · 23/02/2019 23:08

Surprising the mental gymnastics people perform to explain why speeding laws shouldn't apply to them.

CheshireChat · 23/02/2019 23:12

Where do you guys drive? It seems like everywhere has the average speed cameras installed so there's no real opportunity to speed anyway. Unless you want to pay loads of fines of course.

FuckItFriday · 23/02/2019 23:45

No average speed cameras bear me unless there's roadworks.

hoge · 23/02/2019 23:50

Best part of half a million miles over about 20 years.

On the motorway at 2am?

Smotheroffive · 23/02/2019 23:51

booboo I see its very important to go fast and warm up the planet faster for no good reason

One sensible reason is to avoid accidents.

No, the motorways are not safer because they're faster... Jeeez!!! Their safer statistically because of lack of roundabouts,traffic lights, people, bicycles, dogs, junctions, cross-roads, windy roads with blind bends and hills....that's why they're safer! Good god!

hoge · 23/02/2019 23:52

There’s a NSL (60mph) dual carriageway bypass here which was built to ease congestion on a 30mph local road.

The NSL is 70mph on a dual carriageway, not 60mph. I guess your half a million miles didn't grant you as much knowledge as you previously thought.

Amrad · 23/02/2019 23:55

"At 20 a child is dragged under the car and crushed, at 30 a child is flipped over the car and will likely suffer leg injuries and survive. FuckItFriday at motorway speeds doing 90mph and hitting a vehicle doing 70mph is far less dangerous than doing 70 mph and hitting a vehicle doing 40mph."

None of this is fact. Especially the second part. 2 vehicles colliding at 90 and 70 = impact speed of 160. 2 colliding at 70 and 40 = impact speed of 110. Its basic physics.

As for children. It depends on the vehicle, when the brakes were applied and what position the child is in, but essentially the higher the speed = more force is involved = higher risk of severe injury.

ElizabethMountbatten · 23/02/2019 23:59

This reply has been withdrawn

This has been withdrawn by MNHQ at the request of the OP.

Walnutwhipster · 24/02/2019 00:01

My car has a limiter should I choose to set it. It's great when there's average speed cameras on a motorway, especially when it's 40mph for miles during roadworks.

Smotheroffive · 24/02/2019 00:10

Each vehicle has its own ideal speed based on its engine size, and bearing in mind how important and high profile the warning of the planet, why propose using more fuel/polluting particles.

A small engine will work most economically at say 40-50, in its highest gear. A much bigger engine 50-60. Basically keeping the revs at the lowest in the highest gear, like just over 2 on the rev counter. All this means the car is not being pushed to its limits and minimising the stress on the engine.

Boobiliboobiliboo · 24/02/2019 00:10

The NSL on a dual carriageway is 70, not 60.

Wrong. A dual carriageway just means a carriageway going in each direction. In this case one lane in each direction with no physical central barrier. Hence NSL = 60mph.

Smotheroffive · 24/02/2019 00:13

I think you're just being pedantic boobili

I think we all know what she meant even if literally speaking in the highway code it is one lane each way. In general language its widely referred to as a dual-carriageway.

The point remains you sound a bit of a speed merchant

Boobiliboobiliboo · 24/02/2019 00:13

On the motorway at 2am?

A lot of it, yes. I commuted weekly 300 miles each way for over 10 years and that was the quickest way. It’s also when I’m most awake.

Boobiliboobiliboo · 24/02/2019 00:15

The point remains you sound a bit of a speed merchant

I absolutely am. Have a racing licence and everything. I make no apology for it. I don’t take unnecessary risks but I do routinely exceed speed limits. Never once had a speeding ticket.

Boobiliboobiliboo · 24/02/2019 00:19

None of this is fact. Especially the second part. 2 vehicles colliding at 90 and 70 = impact speed of 160. 2 colliding at 70 and 40 = impact speed of 110. Its basic physics.

Only if it’s head on - unlikely on a motorway.

Impact speed if travelling in the same direction is 20 in your first scenario (less than 1/3 of the slowest vehicle) and 30 on the second (3/4 of the speed of the slowest vehicle). I’d expect greater injury (assuming no flips or secondary impacts) in the second scenario.

Smotheroffive · 24/02/2019 00:19

I am saying its useless pursuit and wasteful of the planets resources and increases pollution, and will increase risk on the road, just because you want to go fast?

I would you in the same bracket as the jerks on that awful car programme and the idiot that used to present it before his aggression spilled over into public life

Boobiliboobiliboo · 24/02/2019 00:20

booboo I see its very important to go fast and warm up the planet faster for no good reason

I’m vegetarian and have one child, no pets. I suspect my carbon footprint is a lot smaller than yours.

Boobiliboobiliboo · 24/02/2019 00:21

I would you in the same bracket as the jerks on that awful car programme and the idiot that used to present it before his aggression spilled over into public life

Top Gear? Funny you should say that - I was on it years ago. Grin

Smotheroffive · 24/02/2019 00:22

You have a warped sense of humour.

You sure make up for it in pumping fumes into the planet just because you want to go faster than everyone else.

Boobiliboobiliboo · 24/02/2019 00:25

Why would you assume fumes?