40mph limit on the M1 in the rain????
40mph limit on the M1 in the rain????
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simonharrod911

Original Poster:

6,792 posts

262 months

Friday 29th July 2005
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Travelling up a relatively quiet M1 yesterday when it started raining. Warning boards immediately warned "DANGER FROM SPRAY - 40MPH", or words to that effect.

Can anyone tell me whether this is an advisory limit, or legally enforced?

I have never seen this before, and was utterly bewildered. I don't want to appear flash, but I have two devices fitted to my car which wipe any water from the windscreen in the event of a downpour. They even have variable settings for different levels of severity.

At one point I cut my speed to 40 and got overtaken by trucks sounding their horns, the traffic flow naturally sat at about 68MPH.

I did wonder whether this was a Babylon ploy to nick hundreds of people at once to help pay for anti terror costs. Does anyone know anything about this?

scorp

8,783 posts

259 months

Friday 29th July 2005
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Seeing as everyone ignores it and continues to drive at 80mph, on the few sections of M1 that isnt gridlocked, i guess it's advisory ?

V8 Archie

4,703 posts

278 months

Friday 29th July 2005
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As far as I'm aware any speed "limit" displayed on a digital sign (either over the carriageway or on the central reservation) is purely advisory.

havoc

33,430 posts

265 months

Friday 29th July 2005
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V8 Archie said:
As far as I'm aware any speed "limit" displayed on a digital sign (either over the carriageway or on the central reservation) is purely advisory.
Almost correct.

The only speed limits displayed on M-way signs which are enforcable are those surrounded by a red circle.

AFAIK, these only exist on the Heathrow stretch of the M25, and imminently on the middle-bit of the M42...both are/will be enforceable by gantry-mounted GATSO's.

TripleS

4,294 posts

272 months

Friday 29th July 2005
quotequote all
simonharrod911 said:
Travelling up a relatively quiet M1 yesterday when it started raining. Warning boards immediately warned "DANGER FROM SPRAY - 40MPH", or words to that effect.

Can anyone tell me whether this is an advisory limit, or legally enforced?

I have never seen this before, and was utterly bewildered. I don't want to appear flash, but I have two devices fitted to my car which wipe any water from the windscreen in the event of a downpour. They even have variable settings for different levels of severity.

At one point I cut my speed to 40 and got overtaken by trucks sounding their horns, the traffic flow naturally sat at about 68MPH.

I did wonder whether this was a Babylon ploy to nick hundreds of people at once to help pay for anti terror costs. Does anyone know anything about this?


If you are referring to the matrix signs, I believe the message they show is advisory only.

Wet weather conditions inevitably produce some anomalies though. Two examples from my travels yesterday:

Early in the day I found 110 mph in light rain on a DC section of the A66 was perfectly OK. There was virtually no other traffic, visibility was good and the road was free from standing water. Done with suitable care, that is not a problem.

Later in the day on the A1/A1M in North Yorkshire I saw a lot of drivers pressing on at what looked like about 80-90 mph in fairly heavy rain. This time there was a fair amount of traffic and too many people were diving into dense clouds of spray rather recklessly I felt. That could very easily have produced extremely serious problems.

It was two very different situations.

Best wishes all,
Dave.

timtonal

2,049 posts

263 months

Friday 29th July 2005
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I was driving from Northants to Nottingham yesterday morning through the spray - no spray warnings on the signs. Then passed J24 onto nice new pourous asphalt - barely any spray and all the matrix signs lit up like Blackpool Illuminations warning of spray and an advisory speed limit of 40!

cptsideways

13,884 posts

282 months

Friday 29th July 2005
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Considering the number of drivers who managed to rear end the stationary queues ahead yesterday on the M1 its no wonder they put 40 limit signs up. I was stuck in the queue too.

Funny how if you slow down you dont meet the queue ahead is'nt it? though this seems to impossible for 99% of all those "executives" to work out whilst carrying on at 80 odd into the queue ahead.


If you need to brake on the motorway your either going too fast, not looking ahead or following too close simple as that.

scorp

8,783 posts

259 months

Friday 29th July 2005
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cptsideways said:

If you need to brake on the motorway your either going too fast, not looking ahead or following too close simple as that.


Or your stuck behind a defensively braking numpty with a heavy right foot.

deva link

26,934 posts

275 months

Friday 29th July 2005
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cptsideways said:

If you need to brake on the motorway your either going too fast, not looking ahead or following too close simple as that.

A lot of cars have very little engine braking these days so can't avoid braking.

I tend to flash my brake lights at the first sign of slowing traffic, especially if I've got someone close behind me, who's probably looking no further ahead than my bumper. A lot of drivers leave braking until they're rapidly closing on the traffic ahead and then they're suddenly trying to brake to a stop from 70-90MPH. In the conditions we've got now (rain on top of well oiled and rubbered road surfaces) it's not surprising there are a lot of rear-end shunts.

Sheepy

3,164 posts

279 months

Friday 29th July 2005
quotequote all
V8 Archie said:
As far as I'm aware any speed "limit" displayed on a digital sign (either over the carriageway or on the central reservation) is purely advisory.
Ignoring an advisory limit is not an offense in itself, but (iirc) it can be a contributory factor towards a careless/dangerous driving type charge if you were to cause an accident.

Sheepy

Mr Whippy

32,453 posts

271 months

Friday 29th July 2005
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At a point on my way home the M62 eastbound last night was going 40mph in the slow and middle lanes. There must have been a good 2cm of standing water on the road!

Pretty bad conditions. Some people just don't realise how bad standing water and low tyre tread is

My workmate was going 70-80mph last night on way home and did a few 180's and 90's over-correcting down a dual -carriageway

Best to heed the notices in bad weather, both for your own safety, but so your going slower and hopefully near the hard shoulder for when some tit like my workmate skids past you/into you!

Worse the road gets, the worse the bad drivers get

Dave

>> Edited by Mr Whippy on Friday 29th July 13:48

V8 Archie

4,703 posts

278 months

Friday 29th July 2005
quotequote all
Sheepy said:
Ignoring an advisory limit is not an offense in itself, but (iirc) it can be a contributory factor towards a careless/dangerous driving type charge if you were to cause an accident.
That's my understanding. It's a shame really as so many advisory speed limits (and enforceable ones too) are so rediculously low now that I find myself seeing just how fast I can take the bend that they are posted on.

My current record is about 70mph for a bend signed 30mph! I also know of at least on sliproad that's signed 50mph that is comfortable at 90ish. Although one that's not stupidly low was quite exiting at about 30mph (signed 20).

x1m

5,889 posts

257 months

Friday 29th July 2005
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Everyone I saw carried on doing "70"...

What worried me was the M69. Roadwork speed signs (on an easel, circular with a red outline) were all saying 10mph, and it was down from 2 lanes to 1. I thought they were enforcable, but didn't want to do 10mph along a fairly empty motorway. Are they?

deva link

26,934 posts

275 months

Friday 29th July 2005
quotequote all
V8 Archie said:

That's my understanding. It's a shame really as so many advisory speed limits (and enforceable ones too) are so rediculously low now that I find myself seeing just how fast I can take the bend that they are posted on.

They're ridiculously low for you (and your car) but what about Ma & Pa in their 15yr old motorhome with the dishes still stacked on the drainer? Like all speed limits, they're set for the lowest common demominator. Beating them by wide margins doesn't make you a big guy.
V8 Archie said:

My current record is about 70mph for a bend signed 30mph! I also know of at least on sliproad that's signed 50mph that is comfortable at 90ish. Although one that's not stupidly low was quite exiting at about 30mph (signed 20).

I wish they'd bank more of them, like they frequently do in the 'States - although on a recent trip to California I scared myself by entering a 25MPH slip road a bit too quick in a Kia Amanti, a complete boat of a car.

V8 Archie

4,703 posts

278 months

Friday 29th July 2005
quotequote all
deva link said:
They're ridiculously low for you (and your car) but what about Ma & Pa in their 15yr old motorhome with the dishes still stacked on the drainer? Like all speed limits, they're set for the lowest common demominator. Beating them by wide margins doesn't make you a big guy.
Granted (especially the "big guy" bit). However, the 30 corner I've done at 70 I have also done at about 55 in a 10 year old Clio in the wet. Not that that really matters too much, the point about speed limits (certainly enforceable one and therefore for consistency advisory ones) is that they should never be set for the lowest common denominator, but rather for the 85th percentile.

Nick_Chim

436 posts

257 months

Friday 29th July 2005
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I realised that advisory limits, reduce speed now signs and "slow" markings on the road are perfect for a fully laden Transit minibus when driving for a 3 peaks team a few years back. Lowest common denominator I'm afraid Archie!

>> Edited by Nick_Chim on Friday 29th July 18:12

towman

14,938 posts

269 months

Saturday 30th July 2005
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[redacted]

nonegreen

7,803 posts

300 months

Sunday 31st July 2005
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The matrix signs would look great covered in graffit. Personally I never pay them any attention as they are by and large out of date, just plain wrong or really bad advice. Like road humps, cameras and speed limits, they are the tools of over zealous moralistic morons who will be first against the wall when the revolution comes.

Get a grip and drive to the conditions, if you can't then stay at home, simple really.

8Pack

5,182 posts

270 months

Monday 1st August 2005
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Well, I take a more ...Pragmatic view, Last year I returned to Britain from Europe. Around 10 miles from home on the M62 I suddenly came upon a "CLOUDBURST" of rain which slowed me to less than 40 mph and I was STILL aquaplaning at that and I'm no chicken!

Now common folks, IF the weather authorities know about it shouldn't they warn you?.......of course they should........But!...They should NEVER...EVER......cry wolf! ...........That's all!

nonegreen

7,803 posts

300 months

Monday 1st August 2005
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8Pack said:
IF the weather authorities know about it shouldn't they warn you?.......of course they should........But!...They should NEVER...EVER......cry wolf! ...........That's all!


The Weather Authorities?