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Speed Cameras, Heads Up !!!

At last, Cinek chips in as well...a bleedin' hatrick.

The comment made at the time (3 months ago) was topical and accurate. You are all now just sh!t stirring.
 
I just like trawling any of the forums. Take care. T.

Good. Go and trawl the forum to berate who originally made the comment about scum bikers.

p.s. I asked you a direct question a few days ago, you don't seem to have trawled the forum sufficiently to have answered that.
 
I wonder sometimes why so many find it difficult to observe a speed limit, the difference in journey times is likely to be a few minutes at most.
I drive from the south coast to the Scottish highlands 3-4 times a year. I usually travel in the late evening or very early morning. I try to maintain 85mph all the way till past Glasgow. I would go faster if it wasn't for attracting the wrong kind of attention. My preferred crusing speed would be about 100mph if conditions allowed. Driving at nsl would add at least an hour, hour and a half to each half of my journey which is significant.
 
I always use the limit +10% rule, keeps you within the ACPO guidelines and lets you glide past lesser mortals afraid to do the true speed not the one indicated on thier speedos (although why they should wear swimming trunks in the car....? :D ) , but since the proliferation of satnavs most people know the true speed anyway, shame really but often they are still wary of exceeding it.

Maybe they just don't want to drive at the 'true' speed limit. Not everyone wants to tear-a**e around the country. High speeds could be bad for the health in more ways than one.

I wonder if anyone has ever done a study around how much congestion is caused by speeders on motorways?
 
I wonder if anyone has ever done a study around how much congestion is caused by speeders on motorways?

But of course :)

Why do you think we have more and more 'specs' cameras (read- average speed).
Active Traffic Management schemes whole purpose is to ease congestion. This is achieved by reducing the average speed, which it turn reduces tail gating and other erratic, unwanted behaviour.

It is one of facts of life, that reduced speed will not only see you safer, but also shorten your journey (well, most of the time).

Just because you are doing 80mph for 5 min, you are then stuck in static queue for 10 min and your average time is quite long overall.
If you were able to maintain 50 mph all the way through, you would complete this journey much quicker.
 
You must be Cinek's mate. Three months after a then topical comment was made, you decide to stir things.

Tonys selling his bike to give the money to charity last I heard ?
 
But of course :)

Why do you think we have more and more 'specs' cameras (read- average speed).
Active Traffic Management schemes whole purpose is to ease congestion. This is achieved by reducing the average speed, which it turn reduces tail gating and other erratic, unwanted behaviour.
In severely congested conditions the maximum speed is reduced due to vehicle separation requirements so as to create extra road capacity, but the other benefits accrue through minimising the deviation from the mean speed, and thus having all (or nearly all) the traffic travelling at the same speed.

One of the issues we have on the motorway networks in Europe is that certain classes of vehicle are physically limited to a maximum speed much lower than the legal limit for other classes of vehicle. It is instructive to experience the much improved traffic flow that not having this enforced differential causes. In the USA they do this by not artificially limiting the speed of trucks, so everything travels at the higher speed. In the UK the default position seems to be to restrict all traffic to that of the slowest moving.
 
In severely congested conditions the maximum speed is reduced due to vehicle separation requirements so as to create extra road capacity, but the other benefits accrue through minimising the deviation from the mean speed, and thus having all (or nearly all) the traffic travelling at the same speed.

One of the issues we have on the motorway networks in Europe is that certain classes of vehicle are physically limited to a maximum speed much lower than the legal limit for other classes of vehicle. It is instructive to experience the much improved traffic flow that not having this enforced differential causes. In the USA they do this by not artificially limiting the speed of trucks, so everything travels at the higher speed. In the UK the default position seems to be to restrict all traffic to that of the slowest moving.

Yes, thats correct, most of managed motorways and ATM systems are controlled without human presence or human interference as such.

Traffic separation can only be measured if there are suitable loops installed in the tarmac, at regular intervals.
These however can be flawed, if you have a multi axle vehicle going over those which could be read by the system as two vehicles travelling too close together.

Not sure how things work in USA, but the speed limits in UK are not always in line with slowest vehicles on the road,
Another contributory factors are peak traffic times, traffic density and most of all, current traffic count / congestion levels.
 
In severely congested conditions the maximum speed is reduced due to vehicle separation requirements so as to create extra road capacity, but the other benefits accrue through minimising the deviation from the mean speed, and thus having all (or nearly all) the traffic travelling at the same speed.

That's the point. When you have a small percentage of speeders effectively blocking the right-hand lane, especially when they are also too close to each other, it causes congestion by limiting the overtaking movement of vehicles from the left-hand lane and the centre lane, and thus the left-hand and centre lanes congest. Which is why traffic policed by specs cameras, which greatly increase the chances of being caught, moves more efficiently. It's not the speed per se, it's the uniformity of speed. The same improvement would apply if specs were installed on derestricted stretches.

If Cinek believes that traffic management reduces congestion by reducing tail-gating and erratic behaviour, he doesn't travel the same motorways as myself!
 
If Cinek believes that traffic management reduces congestion by reducing tail-gating and erratic behaviour, he doesn't travel the same motorways as myself!

18 years in highways industry...but hey, what do I know ;)

ATM reduces erratic speed patterns, where individual units accelerate way above the legal limits and tail gate drivers in front of them attempting to force them over to another line.
Sudden braking at marker 98/0, is far more than likely going to result in complete halt, say around marker 96/5.
That is caused by lack of suitable gaps in between travelling traffic, where in the worst case scenarios it ends up in a multi vehicle pile up.

Average speed reduces such behavior, but of course it doesn't eliminate it altogether.
 
Maybe they just don't want to drive at the 'true' speed limit. Not everyone wants to tear-a**e around the country. High speeds could be bad for the health in more ways than one.

I wonder if anyone has ever done a study around how much congestion is caused by speeders on motorways?

So now we tear-a**e around when we do the true speed limit and not the one shown on the speedo? :rolleyes:
 

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