From: Daryl Walford on
Clockmeister wrote:
> "veritas" <veritas(a)coldmail.con> wrote in message
> news:Gr5bi.11793$wH4.1190(a)news-server.bigpond.net.au...
>> Daryl Walford wrote:
>>> There are many "alternatives" that can prevent a repeat of last Tuesday's
>>> crash, better roads, better management of road transport which may be as
>>> simple as paying drivers a lot more so there won't be a driver shortage
>>> which causes people to work excess hours and we can put more freight onto
>>> trains but none of those measures will completely eliminate the
>>> possibility of it happening again.
>>> As I said previously even the very best drivers can have momentary lapses
>>> in concentration and thats all it takes.
>
> It took more then a momentary lapse of concentraction by the looks of it,
> more like a reckless act.
>
>
It would only take a short concentration lapse to reduce the stopping
distance enough to where he had no hope of stopping, he had a 14 tonne
payload so his gross weight would be approx 34 tonne and that takes a
bit to stop from 100kph.
I very much doubt that we will ever know with 100% certainty exactly
what caused the crash and we both may be partly correct, maybe he wasn't
concentrating enough, saw the train then after realizing he had no hope
of stopping he tried to beat it, either way we only only speculating.



Daryl
From: John Hudson on

"reg-john" <al(a)fddfd.com> wrote in message
news:qwwai.10993$wH4.8742(a)news-server.bigpond.net.au...
> 60,000 times more damage? did you proofread this post?
>

I've had a bit of a look round the net and it is true. The calculation is
axle load to the fourth power. This means that a 40 tonne truck will do yes,
60,000 times more damage than a one ton car. This refers to bitumen roads.
If a car does sfa damage and you multiply it by 60,000 then it's still sfa.
What one really needs to know is what this means in dollar terms.
regards,
huddo


From: hoot on

"John Hudson" <huddo(a)bigpond.net.au> wrote in message
news:f1obi.12624$wH4.5379(a)news-server.bigpond.net.au...
>
> "reg-john" <al(a)fddfd.com> wrote in message
> news:qwwai.10993$wH4.8742(a)news-server.bigpond.net.au...
>> 60,000 times more damage? did you proofread this post?
>>
>
> I've had a bit of a look round the net and it is true. The calculation is
> axle load to the fourth power. This means that a 40 tonne truck will do
> yes, 60,000 times more damage than a one ton car. This refers to bitumen
> roads. If a car does sfa damage and you multiply it by 60,000 then it's
> still sfa. What one really needs to know is what this means in dollar
> terms.
> regards,
> huddo
>

John, could you tell me where to find this info.
I'm having trouble understanding what you actually get (what units) when you
raise the weight to the fourth power. 40^4 = 2560000 and 1^4 = 1 so the
truck ends up 2.56 million times higher than the car. A 20ton truck is only
160000 time higher.

But what does it actually refer to?
Do i need to divide by the number of axles?
Why is it raised to the foruth?
How do the numbers generated translate into damage?
What is the SI unit for damage? And how many tons of wight equals one unit
of damage?
What is damage? a pot hole? Cracking? Rippling?
Does the cost of damage just refer to the cost of repair or should it take
into account lost revenue caused by road interuption or extra fuel/wear and
tear/time cost for driving around the damage?
If damage is related to wieght, why is the truck damage not 40 times the car
damage?
If a car does ten dollars worth of damage does a truck really do six hundred
thousand dollars worth.
(or $25,600,000 worth depending on the figure used)?
Also if we had dedicated truck lanes would they really cost sixty thousand
times as much to maintain?
How much does a bus weigh? How much more damaged do Bus Lanes get?

I ask these questions seriously, but i don't expect you to answer them, if
you could point me to where you found your info i'll have a look for myself.
I agree about needing to know what it means in dollar term but can't see a
way to express these figures in dollar terms without a quantifier. There is
much more info needed to validate these figures. Just generating numbers
from a formular is a long way from an engineering proof.
And without proof or validation, using the figures as one of the reasons to
remove trucks from the road seems a little half baked.
I'm willing to pay for all the theoretical damage in the world, as long as i
can use my theoretical dollars.

H.






From: reg-john on

"Noddy" <dg4163@(nospam)dodo.com.au> wrote in message
news:466be091$0$59820$c30e37c6(a)lon-reader.news.telstra.net...
>
> "reg-john" <al(a)fddfd.com> wrote in message
> news:o7Oai.11367$wH4.7252(a)news-server.bigpond.net.au...
>
>> this is how it will all eventually be, but until it is you will get
>> companies pushing their drivers. and expect the cost of most goods to
>> increase in line with the large costs incurred in complying 100% with
>> safety regulations.
>
> The sooner it's made law the better.

would you then be in favour of the same system for cars?

after all if every speed infraction can be recorded, a lot less people will
do so.


>
> --
> Regards,
> Noddy.
>

From: Noddy on

"reg-john" <al(a)fddfd.com> wrote in message
news:P_tbi.12883$wH4.11831(a)news-server.bigpond.net.au...

> would you then be in favour of the same system for cars?

Absolutely.

> after all if every speed infraction can be recorded, a lot less people
> will do so.

Indeed.

To that end, I'd like to see a lot of the revenue (if not all of it)
generated by speed cameras used to put a large number of police on our roads
so the visible deterrent actually works rather than using the "speed kills"
hype as a revenue raiser.

--
Regards,
Noddy.