Scotland to be covered by ASCs - cos it reduces speeding!

[Engineer792]

jet_noise said:

Davidonly said:

https://www.thecourier.co.uk/fp/news/local/dundee/...

<Snip>

Trouble is all they can claim is a reduction in 'Speeding'. Is that enough? What's the REAL purpose of these things?

some evidence that it reduces accidents too
Page 10 has a simple summary graph.

It does seem a sledgehammer to crack a nut approach but those stats don't lie (I haven't been through the report in detail to verify that last statement!),

I use the A9 regularly but rarely (twice a year) on a Saturday and it's been good for me. There has mostly been overtaking opportunities, the sheep mostly not getting the concept of a swift overtake

regards,
Jet

Statistics don't lie, but they can be presented in highly misleading ways.
I would prefer to see at least 10 to 20 years worth of data in order to have confidence that it's not part of a long-term trend, and that the baseline used isn't itself a statistical outlier.
Even then, it would be useful to have data on what sort of accidents have been 'prevented', eg overtaking

[jet_noise]

Point taken, have you looked for such longer term data?
I Binged (other internet search engines are available) and the doc I found was on the first page.

[alangla]

Engineer792 said:

Statistics don't lie, but they can be presented in highly misleading ways.
I would prefer to see at least 10 to 20 years worth of data in order to have confidence that it's not part of a long-term trend, and that the baseline used isn't itself a statistical outlier.
Even then, it would be useful to have data on what sort of accidents have been 'prevented', eg overtaking

They would also have to only use stats related to unimproved sections of the road - quite a few of the most risky junctions (i.e. right turns out of larger villages) have been upgraded to left turn only & in many cases a flyover built. Here's an example of a typical improvement - https://goo.gl/maps/8haeKt4cPA32 - this should be a pic of the Bankfoot junction in 2008. Pull the time slider forward to September 2016 to see why right turn accidents might have declined at this location.

Also worth noting that the first section of ASCs in Scotland - the A77 north of the Dutch House roundabout - has seen its right turns and a lot of the premises access eradicated, but the 50mph limit & ASCs remain. Typical example from here is the Symington junction in 2011 - https://goo.gl/maps/8wB1MzgQg5N2 - pull forward to 2016 to see the junction upgrade & removal of right turn.

[V8 Fettler]

Davidonly said:

V8 Fettler said:

I can recall making good progress on the much improved A9 in the late 1980s. Heady days, now gone.

Yes me too... zero death and mayhem and when conditions allowed everyone got on with it.

Almost certain prison time of caught repeating the same today.

Memories of the A9 in the 1980's sustained me yesterday as I trundled at walking pace or less along the A14.

[mgrays]

corozin said:

The Scots voted for the SNP. They got the SNP...

Yeah like we voted for the lower drink drive limit. Put that one to a (neve)referendum to a society of binge drinkers and see how far it would have gone..

Politicians do what the squeaky hinge populous squawk about; the rest of us do not squeak loudly enough.

[Engineer792]

jet_noise said:

Point taken, have you looked for such longer term data?
I Binged (other internet search engines are available) and the doc I found was on the first page.

I have the STATS19 data, downloaded from gov.uk, but it's a huge dataset, covering all reported accidents in the UK.
It would be a time-consuming task to extract the data I want to look at, and time is a commodity I'm a bit short of at the moment, unfortunately.

But why do they not make such data available to the public, particularly at the consultation phase?

[AH33]

cb1965 said:

It's not hard to see why more and more cars are running around on dicky plates is it?

Not at all. I dont blame them whatsoever. If my area was covered in them I'd just remove my front plate at first. It's not like I'm going to be pulled over by a non existant traffic car, and even if I was, the penalties for driving without a plate are vastly outweighed by the months or even years of avoiding being fined for doing 24mph on a wide empty road.

[mybrainhurts]

I predict an explosion of false plates.

[JM]

mellowman said:

there's no average speed monitoring measuring of the dual carriageway sections AT ALL.

Yes there is, the Dunblane to Perth DC section.


And also the Pitlochry bye-pass section where there is a very short section of DC at the north junctions to/from Pitlochry.
It's a bit of a strange one and I suspect the 'authorities' may claim it is a long traffic island or similar, but the HGV 50 limit ends at the start of it and resumes at the end of it.

https://goo.gl/maps/ZePQ4WFzJr82

[Engineer792]

jet_noise said:

Point taken, have you looked for such longer term data?
I Binged (other internet search engines are available) and the doc I found was on the first page.

I've now extracted the casualty data for the A9 between Dunblane and Inverness for the years 1999 to 2015 from STATS19.
The data presented in the chart below paint a rather different picture:

[grumpy52]

Ah the A9 ,I did a run overnight up to Inver Gordon,no problem all us trucks romping along as fast as we could go but not taking liberties through the built up areas or villages .
Coming back in daylight was a totally different matter ,40mph max with huge lines of traffic .
The worst Scottish road for danger that I have experienced is coming back from Cairnryan to Carlisle at night night. The Irish truckers don't take any prisoners on that road .Frost and untreated roads made nil difference to them .