Epic fail

http://www.thedrum.com/stuff/2014/09/30/sainsbury-s-accidentally-displays-internal-memo-shop-window

My world view just went sideways.

Sainsburys. Fucking cunts. They have just announced a third quarterly fall in sales, so fuck them very much.

Ahh. Bit of early morning swearing. Feel better now.

allegedly From the pen of Claire Perry MP, the Under Secretary of State for Transport, presumably arguing (poorly) for an increase in HGV speed limits.

faster lorries means less wear and tear because mind-science!

lels

Look like she fail to also understand power steering.

Look like she fail to understand power steering.

I think we must all fail to understand, in that case.

Please, enlighten us.

Pixels look a bit funny.

Power steering is usually one of the main cause of road deterioration, especially when nearing construction sites.

Please enlighten us some more.

Do go on...

I think he means when they turn their wheels while stationary or slow moving as they would churn more of the road surface than when moving faster. Although, that is probably bollocks and has nothing to do with increasing the speed limits.

Point being is that the report is simplifying the issues a little.

wow... That wasn't in scoblese... What IS this forum coming too...

It was, you're just picking up the lingo.

@edscoble do you mean differential steering instead of power steering?

This thread is getting into meta fail if you are going to be pedantic about the terms ed uses.

...yet she claims on Twitter to 'love cycling'.

Thankfully, this seemingly adsurd decision to increase speed limits was only made for single-carriageway rural roads, where they claim increasing speed limits for HGVs will "cut dangerous overtaking" but I'm yet to hear a convincing argument for it. Speed kills.

where they claim increasing speed limits for HGVs will "cut dangerous overtaking" but I'm yet to hear a convincing argument for it.

It's not the HGVs overtaking other road users dangerously, it refers to cars performing dangerous overtaking to get past HGVs due to the mismatched speed limits for the two classes of vehicles on certain roads.

HGVs are limited to 40mph on single-carriageway NSL roads; cars 60mph. So streams of cars wanting to go at 60mph (as is their $DEITY given right) will all need to overtake the HGVs doing 40mph (ha!) and many of those overtakes will be piss poor.

The argument is that allowing HGVs to do 60mph along with cars on those roads mean that it greatly reduces the number of overtakes required.

"We decided to solve the problem of stupid drivers by making the law stupid, thus rendering stupidity legal through legal stupidity..."

You are clearly a barrister....

Speed kills.

Nonsense. If anything it save lives, cos taking it helps the HGV drivers stay awake.

Ok, where does this come from?

Isn't she sort of right? In sciency terms of point load/distributed load over time but throwing friction in to the equation changes things.

EDIT - There needs to be a finite area for the loading...

http://www.cyclelicio.us/2014/fourth-power-rule-road-tax/

"
There’s also a speed component to the Fourth Power Rule. It’s usually not talked about because vehicles all mostly travel at the same speed, but when we compare a 15 MPH bicycle against a 60 MPH Prius, that 4X speed difference means a 4X difference in road damage.
"

So, shit example aside, assuming damage to the roads is proportional to speed and inversely proportional to time then the speed at which you go over something makes no real difference as they both cancel out. If the road is perfect.

For an imperfect surfaced road it should be obvious that the impact from a bouncing wheel is going to be greater from a faster moving vehicle and the duration of such impact irrelevant.