maximum speed on motorway?

maximum speed on motorway?

Author
Discussion

Pan Pan Pan

9,919 posts

112 months

Wednesday 30th January 2019
quotequote all
nonsequitur said:
Pan Pan Pan said:
Ironically if people were to travel at the posted limits everywhere they went, they would find that they can get to most places they want to be, in reasonable time frames. Having driven very early in the mornings when traffic is relatively light I have found that even when adhering to all the posted limits, very good progress, and reduced journey times are easily achievable without breaking traffic law.
Driving in France gives a sense of this, because the roads are relatively lightly trafficked, so just by sticking to their (more sensible) 80 mph dry road mptorway limit great distances can be covered easily. (a bit like a ship which might only do 20 mph, but it can do that, hour in, and hour out, such that at the end of a day great distances can be covered effortlessly)
Sometimes when in traffic I find myself doing the equivalent of making hay whilst the sun shines (e.g when the road is clear), to help compensate timewise for the almost inevitable (on UK roads) miles of crawling traffic that have to be got through to finally reach ones destination.
The variable speed limits posted on motorway gantries. The traffic does keep moving steadily as I recall. Very few back -ups.


If only it did. As soon as the reduced speed limits get posted up on the gantries most of the time the traffic slows to a crawl, the hundreds of times I have looked up at the gantries with 40 or 50 mph posted on them, whilst crawling along at 4 or 5 mph. Those signs create traffic jams they do not ease them.

nonsequitur

20,083 posts

117 months

Wednesday 30th January 2019
quotequote all
Pan Pan Pan said:
nonsequitur said:
Pan Pan Pan said:
Ironically if people were to travel at the posted limits everywhere they went, they would find that they can get to most places they want to be, in reasonable time frames. Having driven very early in the mornings when traffic is relatively light I have found that even when adhering to all the posted limits, very good progress, and reduced journey times are easily achievable without breaking traffic law.
Driving in France gives a sense of this, because the roads are relatively lightly trafficked, so just by sticking to their (more sensible) 80 mph dry road mptorway limit great distances can be covered easily. (a bit like a ship which might only do 20 mph, but it can do that, hour in, and hour out, such that at the end of a day great distances can be covered effortlessly)
Sometimes when in traffic I find myself doing the equivalent of making hay whilst the sun shines (e.g when the road is clear), to help compensate timewise for the almost inevitable (on UK roads) miles of crawling traffic that have to be got through to finally reach ones destination.
The variable speed limits posted on motorway gantries. The traffic does keep moving steadily as I recall. Very few back -ups.


If only it did. As soon as the reduced speed limits get posted up on the gantries most of the time the traffic slows to a crawl, the hundreds of times I have looked up at the gantries with 40 or 50 mph posted on them, whilst crawling along at 4 or 5 mph. Those signs create traffic jams they do not ease them.
I must have travelled on a good, or lucky, day.

jkk45

51 posts

96 months

Wednesday 30th January 2019
quotequote all
In response to the OPs initial question:

The correct answer is 70.

WarrenB

2,417 posts

119 months

Thursday 31st January 2019
quotequote all
jkk45 said:
In response to the OPs initial question:

The correct answer is 70.
Except HGVs. And buses. And coaches.

/pedant

wink

PorkRind

3,053 posts

206 months

Thursday 31st January 2019
quotequote all
Haltamer said:
PorkRind said:
Not sure if more managed motorways would be a good thing. 80 when little traffic and free flowing. Reduce it for off weather, greater wry of cars etc. Ultimately they're a means of getting from. A to. Be relatively quickly compared to a and b roads.
With the boredom and middling average speeds of many motorways, I've taken to using small A / B Roads far more often, just running in parallel with the motorway when I'm alone. Makes things far more enjoyable, and not too much of an impact on journey times - Nice to see / visit the quaint villages along the way.
Yeah I was looking for a x country route to get to Derby from Bath and although there's always heavy traffic on the M6 and m42 it's still better than trudging up to Swindon, Oxford and up. Sure in the summer when times not an issue I'd take the a and b roads home from my old Job in Bristol and I'd see alsorts of coll nature and its a more calm experience.

Vipers

32,893 posts

229 months

Thursday 31st January 2019
quotequote all
Solocle said:
Vipers said:
Solocle said:
What I'm waiting for is for one of those lower speed limits "for air quality" to be broken by a guy in a Tesla. It would be interesting to see that play out in court.
No contest, still be exceeding the speed limit.
While that may legally be the case, if the stated reason for the law doesn't apply, there's a shot at Jury nullification.
But the sign will just state the figure, not the reason. Just a question on all those who cruise around at 80 plus, how much does it affect MPG's?

I always thought engines were designed to perform better at or around 70, seem to have read that somewhere, could be BS of course.

nonsequitur

20,083 posts

117 months

Thursday 31st January 2019
quotequote all
miken2k8 said:
So iv'e always done minimum 90 max 98 on motorway but seem to speed past most other traffic. Not after a lecture about speeding i take that risk on my head but i feel the slower you go the more steering and throttle input. Not many go at this speed would like to see if i'm in a minority on a motoring forum?
'On your head' may be, But travelling at close to 100 mph on a MW could, potentially be in addition, other peoples heads. Let us all S(dab).

Shakermaker

11,317 posts

101 months

Thursday 31st January 2019
quotequote all
I attempted, and achieved, top speed in a BMW 328i that I used to own. According to my sat nav, I made it to 144mph early one Sunday morning, going north past Toddington Services.

I think the anticipation of doing so was far more exciting than actually doing so.

Commander2874

374 posts

86 months

Thursday 31st January 2019
quotequote all
In my civic type r - 68mph
Bmw 320d - 70-75 mph

Got a milltek exhaust fitted in my honda civic so drones above 70 lol

Vipers

32,893 posts

229 months

Thursday 31st January 2019
quotequote all
Pan Pan Pan said:
nonsequitur said:
Pan Pan Pan said:
Ironically if people were to travel at the posted limits everywhere they went, they would find that they can get to most places they want to be, in reasonable time frames. Having driven very early in the mornings when traffic is relatively light I have found that even when adhering to all the posted limits, very good progress, and reduced journey times are easily achievable without breaking traffic law.
Driving in France gives a sense of this, because the roads are relatively lightly trafficked, so just by sticking to their (more sensible) 80 mph dry road mptorway limit great distances can be covered easily. (a bit like a ship which might only do 20 mph, but it can do that, hour in, and hour out, such that at the end of a day great distances can be covered effortlessly)
Sometimes when in traffic I find myself doing the equivalent of making hay whilst the sun shines (e.g when the road is clear), to help compensate timewise for the almost inevitable (on UK roads) miles of crawling traffic that have to be got through to finally reach ones destination.
The variable speed limits posted on motorway gantries. The traffic does keep moving steadily as I recall. Very few back -ups.


If only it did. As soon as the reduced speed limits get posted up on the gantries most of the time the traffic slows to a crawl, the hundreds of times I have looked up at the gantries with 40 or 50 mph posted on them, whilst crawling along at 4 or 5 mph. Those signs create traffic jams they do not ease them.
Isn't this part of the domino effect, cars travelling too close, one slows for reduced speed, car behind, until one actually stops because they really are too close, results either in a ghost hold up or 3-4 mph.



swisstoni

17,026 posts

280 months

Thursday 31st January 2019
quotequote all
I don’t think the gantry limits are applied for a laugh. They are in response to slow or stopped traffic further up the road and are an attempt to slow the flow into that.

WarrenB

2,417 posts

119 months

Thursday 31st January 2019
quotequote all
swisstoni said:
I don’t think the gantry limits are applied for a laugh. They are in response to slow or stopped traffic further up the road and are an attempt to slow the flow into that.
Not always. There's been quite a few occasions where I'm the only vehicle on the motorway at 2am on a clear summers night and i've been slowed down to 30MPH for no apparent reason.

Can't think of any reason why they'd do it. Perfect visibility, no traffic, no obstructions...

Vipers

32,893 posts

229 months

Friday 1st February 2019
quotequote all
WarrenB said:
swisstoni said:
I don’t think the gantry limits are applied for a laugh. They are in response to slow or stopped traffic further up the road and are an attempt to slow the flow into that.
Not always. There's been quite a few occasions where I'm the only vehicle on the motorway at 2am on a clear summers night and i've been slowed down to 30MPH for no apparent reason.

Can't think of any reason why they'd do it. Perfect visibility, no traffic, no obstructions...
Slack operators, or maybe some debris has been cleared and the police haven't informed traffic control. Frustrating to say the least.

Pan Pan Pan

9,919 posts

112 months

Friday 1st February 2019
quotequote all
dcb said:
Fairbairn_MacGhillielaidir said:
Speed limits are there for a 'good reason':
No. In the immortal words of LJK Setright "Speed limits waste life.
They are a tool of repression".

Most UK speed limits bear little relevance to safety standards or modern day driving.
Witness the plethora of 40 and 50 limits in rural areas.

Local councils like to set speed limits at the 50% level, when science shows
us the 85% level is the safest level. Local councils are being deliberately obtuse
in picking limits known to be non-optimal.

UK motorway speed limit hasn't been changed in half a century. It's as up to date
as Ken Dodd in the pop charts and cross ply tyres and drum brakes on a Morris Minor
in a current world of radial tyres, disc brakes, ABS and the BMW 3 series being a popular car.

Being forced to drive slowly isn't the same as driving carefully.
Any legislation that fails to take into account significant changes in the condition it has been introduced to control, is doomed to fail at some point.
I have no problem with the current limits, it is those who do not conform to them by either exceeding them by a big margin or driving at a big margin below the posted limit. If roads are the veins and arteries of the country, then a dawdler is the equivalent of a thrombosis, and is just as dangerous as those who exceed the limit by a large margin. Yet some thoughtless people still think that driving slowly is driving safely. It categorically is not.

Pan Pan Pan

9,919 posts

112 months

Friday 1st February 2019
quotequote all
Vipers said:
Pan Pan Pan said:
nonsequitur said:
Pan Pan Pan said:
Ironically if people were to travel at the posted limits everywhere they went, they would find that they can get to most places they want to be, in reasonable time frames. Having driven very early in the mornings when traffic is relatively light I have found that even when adhering to all the posted limits, very good progress, and reduced journey times are easily achievable without breaking traffic law.
Driving in France gives a sense of this, because the roads are relatively lightly trafficked, so just by sticking to their (more sensible) 80 mph dry road mptorway limit great distances can be covered easily. (a bit like a ship which might only do 20 mph, but it can do that, hour in, and hour out, such that at the end of a day great distances can be covered effortlessly)
Sometimes when in traffic I find myself doing the equivalent of making hay whilst the sun shines (e.g when the road is clear), to help compensate timewise for the almost inevitable (on UK roads) miles of crawling traffic that have to be got through to finally reach ones destination.
The variable speed limits posted on motorway gantries. The traffic does keep moving steadily as I recall. Very few back -ups.


If only it did. As soon as the reduced speed limits get posted up on the gantries most of the time the traffic slows to a crawl, the hundreds of times I have looked up at the gantries with 40 or 50 mph posted on them, whilst crawling along at 4 or 5 mph. Those signs create traffic jams they do not ease them.
Isn't this part of the domino effect, cars travelling too close, one slows for reduced speed, car behind, until one actually stops because they really are too close, results either in a ghost hold up or 3-4 mph.
I believe this is the case, As I drove up to 52 thousand miles a year for business, I can`t count the number of times I sat in traffic looking at the `smart' signs on the gantries indicating a limit of 40-50, whilst either stationary, or crawling for miles at 4 or 5 mph, made worse when the `cause' of the smart signs turns out to be a Nissan Micra on the hard shoulder with a flat tyre. And they have the nerve to call this `smart' use of the motorway system.

Pan Pan Pan

9,919 posts

112 months

Friday 1st February 2019
quotequote all
Vipers said:
WarrenB said:
swisstoni said:
I don’t think the gantry limits are applied for a laugh. They are in response to slow or stopped traffic further up the road and are an attempt to slow the flow into that.
Not always. There's been quite a few occasions where I'm the only vehicle on the motorway at 2am on a clear summers night and i've been slowed down to 30MPH for no apparent reason.

Can't think of any reason why they'd do it. Perfect visibility, no traffic, no obstructions...
Slack operators, or maybe some debris has been cleared and the police haven't informed traffic control. Frustrating to say the least.
If this is the case, they clearly have not heard of the Cry Wolf syndrome. Perhaps the operators just like f*cking up the traffic flow, because they can, and they get a bit bored when nothing is happening on the roads which truly warrants them operating their signs..

swisstoni

17,026 posts

280 months

Friday 1st February 2019
quotequote all
Pan Pan Pan said:
dcb said:
Fairbairn_MacGhillielaidir said:
Speed limits are there for a 'good reason':
No. In the immortal words of LJK Setright "Speed limits waste life.
They are a tool of repression".

Most UK speed limits bear little relevance to safety standards or modern day driving.
Witness the plethora of 40 and 50 limits in rural areas.

Local councils like to set speed limits at the 50% level, when science shows
us the 85% level is the safest level. Local councils are being deliberately obtuse
in picking limits known to be non-optimal.

UK motorway speed limit hasn't been changed in half a century. It's as up to date
as Ken Dodd in the pop charts and cross ply tyres and drum brakes on a Morris Minor
in a current world of radial tyres, disc brakes, ABS and the BMW 3 series being a popular car.

Being forced to drive slowly isn't the same as driving carefully.
Any legislation that fails to take into account significant changes in the condition it has been introduced to control, is doomed to fail at some point.
I have no problem with the current limits, it is those who do not conform to them by either exceeding them by a big margin or driving at a big margin below the posted limit. If roads are the veins and arteries of the country, then a dawdler is the equivalent of a thrombosis, and is just as dangerous as those who exceed the limit by a large margin. Yet some thoughtless people still think that driving slowly is driving safely. It categorically is not.
Unless I've missed a recall, Homo Sapiens hasn't been updated over the 50 years and roads are a lot busier.
I'd be in favour of an increase but the same tttery currently on display, but at higher speeds, and speed differentials, doesn't sound too great.

Pan Pan Pan

9,919 posts

112 months

Friday 1st February 2019
quotequote all
There seems to be a different mindset in those who control motorways in this country compared to others.
In France for example their aim seems to be to keep the road open, and if it is blocked by an incident then to get the road cleared and traffic flowing again as soon as possible.
In this country the aim of the road controllers seems to be to get the road shut down for the tiniest of reasons, and then take as long as possible to get the traffic flowing again. It almost seems that they like causing hold ups and congestion.

Pan Pan Pan

9,919 posts

112 months

Friday 1st February 2019
quotequote all
swisstoni said:
Pan Pan Pan said:
dcb said:
Fairbairn_MacGhillielaidir said:
Speed limits are there for a 'good reason':
No. In the immortal words of LJK Setright "Speed limits waste life.
They are a tool of repression".

Most UK speed limits bear little relevance to safety standards or modern day driving.
Witness the plethora of 40 and 50 limits in rural areas.

Local councils like to set speed limits at the 50% level, when science shows
us the 85% level is the safest level. Local councils are being deliberately obtuse
in picking limits known to be non-optimal.

UK motorway speed limit hasn't been changed in half a century. It's as up to date
as Ken Dodd in the pop charts and cross ply tyres and drum brakes on a Morris Minor
in a current world of radial tyres, disc brakes, ABS and the BMW 3 series being a popular car.

Being forced to drive slowly isn't the same as driving carefully.
Any legislation that fails to take into account significant changes in the condition it has been introduced to control, is doomed to fail at some point.
I have no problem with the current limits, it is those who do not conform to them by either exceeding them by a big margin or driving at a big margin below the posted limit. If roads are the veins and arteries of the country, then a dawdler is the equivalent of a thrombosis, and is just as dangerous as those who exceed the limit by a large margin. Yet some thoughtless people still think that driving slowly is driving safely. It categorically is not.
Unless I've missed a recall, Homo Sapiens hasn't been updated over the 50 years and roads are a lot busier.
I'd be in favour of an increase but the same tttery currently on display, but at higher speeds, and speed differentials, doesn't sound too great.
You may be correct in saying that Homo Sapiens hasn't ben updated, but I am not too sure even that statement is quite correct, because vehicles most certainly have been, and improved vehicle capabilities help to enhance the capabilities of those driving them.
Some limits were introduced when vehicles had cart spring suspension, dodgy (sometimes rod operated drum brakes). Now vastly better tyres, ABS, stability control, and many other electronic driving aids contribute to increased safety on the roads at much higher speeds than cars 50 years ago were capable of.
Those that conform to the posted limits are fine, it is those who either exceed them by a big margin, or travel at much lower speeds than the posted limits (who are thankfully the odd ones out), and who constitute the major speed related problems on todays crowded roads.

Edited by Pan Pan Pan on Friday 1st February 12:29

Superleg48

1,524 posts

134 months

Friday 1st February 2019
quotequote all
Sir Bagalot said:
That's a maths fail.

Half way around the M25 is 60 miles. Ish.

At 65 it will take you a shade over 55 mins. At 85 it will take a shade over 42 mins. That's 13 mins saved over 60 miles.

I can see the logic of the OP. You get there quicker.

A mate of mine one evening did Blackpool to North London in 135 mins. His attitude was get caught at 99 you won't get a ban. True. They now drive on a motorway at 60 steady. Uses less fuel but more importantly he says you are less stressed. Driving at silly speeds requires majority concentration, you get tired quicker and suffer stress.

That was a few years ago.

Nowadays you can't really speed due to lane hoggers. You also have the issues of cameras. Quite often I'll be in lane 1 doing 60 and am overtaken by some flying machines. 5 miles up the road I catch them up.

Perhaps it's just an age thinglaugh
Blackpool to North London in 2 hours 15 mins? If we called Brent Cross North London being bottom of M1, that is appx 230 miles. Would need to average 103 mph... i’ll say Bullst to that claim.