Road Deaths UP, Average speeds Down - Correlation??
Road Deaths UP, Average speeds Down - Correlation??
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Thirsty33

Original Poster:

250 posts

252 months

Saturday 20th October 2012
quotequote all
Deaths in 20mph zones up 24%.
Overall deaths up 3% this year.

Cars are getting safer - both primary safety (stopping your bad driving causing a crash in the frist place) and secondary safety (saving your bacon when you run out of luck or skill and hit something) are both steadily increasing - even if technology was static, older cars continue to get scrapped and newer safer one bought, so the net safety of the average car is going up year on year.

So on this alone, you'd expect a consistent drop in death rates, other things being equal. So any rise must mean even worse driving than it suggests.

But no one on PH can have failed to notice that as fuel prices rise and the recession bites harder, average speeds are dropping like a stone.

I would suggest there is a correlation as "road safety" policies fix on speed as being the biggest cause of crashes, and drivers now impose their own low speed regime. It's inattention that causes crashes, and the DoT figures support that - 60-70% of crashes that get recorded as stats are caused primarily by inattention or failing to look. And what is likely to increase if you drive well below the optimum speed for a particular road and conditions? Your attention. And once bored, you think you can afford the mental energy for day dreaming, phoning, texting, whatever. Drive a little quicker and you should naturally focus harder on driving.


simoid

19,774 posts

174 months

Thursday 25th October 2012
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Deaths are up 24% in 20mph zones, is that because there are a lot more zones!?

bobbylondonuk

2,202 posts

206 months

Thursday 25th October 2012
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simoid said:
Deaths are up 24% in 20mph zones, is that because there are a lot more zones!?
Or more morons thinking they are invincible in a 20mph zone and walking across looking into the sky with loud music in their ears and instant social media in their hands! Kids running across the roads and too late to stop etc..

how else can you explain lower avg speed zones having a higher death rate? The higher that number goes and the lower the speed - it points to unsafe pedestrians than 'killer' motorists.

DaveH23

3,333 posts

186 months

Thursday 25th October 2012
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Could the raods in general getting busier be a contribution aswell.

The more people using the roads means more people to crash in to.

s express

160 posts

232 months

Thursday 25th October 2012
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You're right, lack of consideration for other road users and an a total ignorance of your surroundings are a bigger worry than speed imho.
I've been driving 23 years and I swear that standards have dropped massively in those years, how come? I can only see that its down to cars doing more of the driving for you and becoming safer and safer. As Jeremy Clarkson once said, want to make driving safer? stick a big spike in the middel of the steering wheel! - He's right too!

Thirsty33

Original Poster:

250 posts

252 months

Tuesday 20th November 2012
quotequote all
simoid said:
Deaths are up 24% in 20mph zones, is that because there are a lot more zones!?
Yes, I heard that suggestion since I posted - a dirty manipulation of facts if it has not been normilsed by miles of road covered per death.

Thirsty33

Original Poster:

250 posts

252 months

Tuesday 20th November 2012
quotequote all
bobbylondonuk said:
simoid said:
Deaths are up 24% in 20mph zones, is that because there are a lot more zones!?
Or more morons thinking they are invincible in a 20mph zone and walking across looking into the sky with loud music in their ears and instant social media in their hands! Kids running across the roads and too late to stop etc..

how else can you explain lower avg speed zones having a higher death rate? The higher that number goes and the lower the speed - it points to unsafe pedestrians than 'killer' motorists.
That's a possibility; lower speeds and higher accident rates can easily be postulated as slower free running speed, lower attention due to brain under utilisation and higher impact speed, because no one saw the risk. Just a theory....

-Pete-

2,914 posts

192 months

Tuesday 20th November 2012
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Driving standards have dropped since I started around 30 years ago. Selfish, ignorant, impatient etc. The technology hasn't helped either, see the "xenon headlights should be banned" thread and think about the human eye's ability to see in near dark for example. The spike on the steering wheel, no seatbelts and no airbags would probably work. Try doing high speed on a motorbike vs in a modern luxury barge.

Pistonwot

413 posts

175 months

Saturday 1st December 2012
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Look at how pathetic driving standards are, its really not surprising at all.

henrycrun

2,473 posts

256 months

Saturday 1st December 2012
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remember - A Correlation is not Causation.

Let me try
Cellphone use up - Road deaths up

aw51 121565

4,773 posts

249 months

Sunday 2nd December 2012
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Bad winter this year; road deaths up. We're all doomed, doomed I tell ye.

For the sake of argument - road deaths up on last year; winter was worse last year.

That's the thing with statistics - select carefully and ignore the stuff that undermines what you're trying to say;) . Same with 'news' reporting as well; funny that.

As mentioned at the start of the thread, there are significantly more 20mph zones in the UK this year - most of Lancashire is a 20mph zone now! (Actually, most of Lancashire's residential streets are - or soon will be - 20mph zones, but the 'headline' got your attention wink . Most of Lancashire is open land...)

If there were less 20mph zones last year, then one would expect more deaths in 20mph zones this year because there are more 20mph zones to be killed in, this year. Nothing significant about it, really, but selective reporting will put the fear of god up the 'trusting' * in UKplc2012 society frown .


* That's NOT aimed at anyone in this thread smile .

saaby93

32,038 posts

194 months

Monday 3rd December 2012
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20 limits have always had a greater percentage of killed or serious injury than 30mph. Look at the casualty figures. You only have to think about how people behave to work out why.
Do you take more care on a low speed road or a high speed one?


Thirsty33

Original Poster:

250 posts

252 months

Monday 3rd December 2012
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henrycrun said:
remember - A Correlation is not Causation.

Let me try
Cellphone use up - Road deaths up
Agree with both, although are you saying that phone use is not a causation just because of the correlation?

I am pretty confident that accidents and death rates are up because of a general lack of attention by drivers caused by a range of factors, including phone use, sav nav use, complex radio controls, all manner of gadgets used in but not integrated into the car (iPods etc), together with a general lack of importance attached to the task of driving by society in general and the media in particular (talking to camera while driving in every "road safety" programme you ever watch).

As mentioned by another poster, the general lack of a perception of peril is also to blame.

What I also suspect is that the huge improvement in car primary and secondary safety year on year has been masking an underlying trend in bad driving habits going up. Now that safety benefits are leveling, the true effect of poorer driving standards is showing through.

barker22

1,037 posts

183 months

Tuesday 4th December 2012
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aw51 121565 said:
As mentioned at the start of the thread, there are significantly more 20mph zones in the UK this year - most of Lancashire is a 20mph zone now!
Do we know if road deaths have dropped by the same percentage in 30mph zones.

LordFlathead

9,646 posts

274 months

Wednesday 5th December 2012
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Leftfield comment: Maybe due to the massive amount of immigrant ethnic drivers that has descended on our little island over the past few years.

Most of them get a free car.

saaby93

32,038 posts

194 months

Wednesday 5th December 2012
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Thirsty33 said:
As mentioned by another poster, the general lack of a perception of peril is also to blame.

What I also suspect is that the huge improvement in car primary and secondary safety year on year has been masking an underlying trend in bad driving habits going up. Now that safety benefits are leveling, the true effect of poorer driving standards is showing through.
Car safety improvements
driver training improvements
Think!
vs
speed limits lowered in too many places, drivers and pedestrians take less care
Road safety spend on general signage rather than specific accident site layouts
TV ads showing it's safe to be run over at lower speeds

The former was being offset by the latter. Is the latter now winning?


Edited by saaby93 on Wednesday 5th December 11:23

Robb F

4,612 posts

187 months

Wednesday 5th December 2012
quotequote all
henrycrun said:
remember - A Correlation is not Causation.

Let me try
Cellphone use up - Road deaths up
hehe


Synchromesh

2,428 posts

182 months

Wednesday 5th December 2012
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Just used this on another forum, the link was still in the clipboard waiting to be pasted in...