Speed cameras save lives

so in other words it wasnt a stuff up, you just dont like it. You got your doctorate where exactly?

Yeah, it was a "stuff up".

The real value was 500 meters and has nothing to do with what I like or don't like.

Oh, and one doesn't need a doctorate to realize how wrong 500 km was, just a modicum of common sense.
 
if you read the sentance 500m doesnt make any sense. How can 500m be greater than 1 Km? just because you dont LIKE the results doesnt make it a "Stuff up".
 
Of course it does, the impact will be expected to be higher the closer you are to the cameras.

And of course the study itself says that crash data was ONLY collected within 1 km of the cameras:

Crash data were collected for all crashes occurring up to 1km either side of the cameras.

So clearly the 2 values they are reporting on were 500 m and 1 km.

Not 500 friggin kilometers.

Arthur
 
Of course it does, the impact will be expected to be higher the closer you are to the cameras.

double_facepalm.jpg



The RCR in this latter study, for at or less than the 500km distance was 0.69 (95% CI = 0.57-0.69) with an RCR 0.73 (95% CI = 0.53-0.93) calculated for ≤ 1km distance from camera sites.

The effect IS greater less than or equal to 1 km. 0.73 at <= 1km and 0.69 at 500kms

Hense proving a GENERAL effect that you have discounted inspite of evidence that you would see if you could READ
 
Of course it does, the impact will be expected to be higher the closer you are to the cameras.

And of course the study itself says that crash data was ONLY collected within 1 km of the cameras:

Crash data were collected for all crashes occurring up to 1km either side of the cameras.

So clearly the 2 values they are reporting on were 500 m and 1 km.

Not 500 friggin kilometers.

Arthur

Umm do you actually know what a cochrane review is? Its NOT 1 study its meta resurch of a compliation of (in this case) 35 different studies all with different peramiters. God sake, actually do a bit of your own resurch and you wont look like such an idiot
 
Seems im going to have to go back a few steps

What is a Cochrane review
What is a Cochrane Review?
Structure of a Cochrane Review
A multi-stage process

What is a Cochrane Review?
Cochrane Reviews investigate the effects of interventions for prevention, treatment and rehabilitation in a healthcare setting. They are designed to facilitate the choices that doctors, patients, policy makers and others face in health care. Most Cochrane Reviews are based on randomized controlled trials, but other types of evidence may also be taken into account, if appropriate. Cochrane reviews have the following general features:

• A structured format helps the reader to find his/her way around the review easily.
• A detailed methods section allows the reader to assess whether the review was done in such a way as to justify its conclusions.
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Structure of a Cochrane Review
This is the general layout of a Cochrane Review:

1. Plain-language summary - a short statement summarising the review, specifically aimed at lay people.

2. Structured Abstract - a structured summary of the review, subdivided into sections similar to the main review. This may be published independently from the review and appears on the medical bibliographic database MEDLINE.

3. Background - this gives an introduction to the question considered, including, for example, details on causes and incidence of a given problem, the possible mechanism of action of a proposed treatment, uncertainties about management options etc.

4. Objectives - short statement of the aim of the review.

5. Selection criteria - brief description of the main elements of the question under consideration. This is subdivided into:

•Types of studies - for example, randomized controlled trials.

•Types of participants - the population of interest. This section may include details of diagnostic criteria, if desired or appropriate.

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•Types of outcome measures - any outcome measures/endpoints (for example, reduction in symptoms) that are considered important by the reviewer, defined in advance; not only outcome measures actually used in trials.
6. Search strategy for identification of studies - details of how an exhaustive identification of relevant information was attempted, including details of searches of electronic databases, searches for unpublished information, handsearching of journals or conference proceedings, searching of reference lists of relevant articles, etc.

7. Methods of the review - description of how studies eligible for inclusion in the review were selected, how their quality was assessed, how data were extracted from the studies, how data were analysed, whether any subgroups were studied or whether any sensitivity analyses were carried out, etc.

8. Description of studies - how many studies were found, what were their inclusion criteria, how big were they, etc.?

9. Methodological quality of included studies - were there any reasons to doubt the conclusions of any studies because of concerns about the study quality?

10. Results - what do the data show? The results section may be accompanied by a graph to show a meta-analysis, if this was carried out.

11. Discussion - interpretation and assessment of results.

12. Authors' conclusions - subdivided into Implications for practice and Implications for research.
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A multi-stage process
Preparing and maintaining a Cochrane Review is a process with many stages. In contrast to the practices of most print journals, review authors do not, in general, approach the Cochrane Review Group with their finished review. Rather, the Review Group's editorial base provides an input to the review process from the very beginning. Suggested review titles are thoroughly discussed with the Review Group's editorial team; authors are then encouraged to attend a protocol workshop, which leads to the preparation and subsequent publication of a protocol, i.e. a plan of how the review will be carried out. This is followed by work on the main review, with help available for problems with statistical or methodological issues and with trials searching. The editorial team will also try to help with any other issues. Finally, the authors, with the help of the editorial team, are responsible for updating their review regularly (usually about once a year). At all stages of the process, the work is carefully checked by members of the editorial team and by external referees to ensure its quality. For more details on our editorial process, see Would you like to do a Review?

Page content courtesy of cochrane-ent.org

http://www2.cochrane.org/reviews/revstruc.htm
 
Umm do you actually know what a cochrane review is? Its NOT 1 study its meta resurch of a compliation of (in this case) 35 different studies all with different peramiters. God sake, actually do a bit of your own resurch and you wont look like such an idiot

Asguard you shouldn't call people Idiots as it will always come back and bite you in the ASS.

The figure in question, and my quotes about the data collection distance being out to 1 km were from the specific study they were mentioning:

In the (GB 30mph Roads Nationwide) study both fatal and serious injury crashes were reported together. The RCR in this latter study, for at or less than the 500km distance was ....

So I know its a meta research study, but the data we are discussing was in fact from just ONE study.

Now go back, read it, and then come back and apologize.

Oh, and if you don't want to look like an idiot, you might want to learn how to spell simple words correctly.
It's RESEARCH, not resurch and it's PARAMETERS, not peramiters.

Arthur
 
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Asguard you shouldn't call people Idiots as it will always come back and bite you in the ASS.

The figure in question, and my quotes about the data collection distance being out to 1 km were from the specific study they were mentioning:



So I know its a meta research study, but the data we are discussing was in fact from just ONE study.

Now go back, read it, and then come back and apologize.

Arthur

so where does that mention 1 km? infact what you quoted DIRECTLY contradicts what you previously stated.

the (GB 30mph Roads Nationwide) study
 
the effect IS greater less than or equal to 1 km. 0.73 at <= 1km and 0.69 at 500kms
Hense proving a GENERAL effect that you have discounted inspite of evidence that you would see if you could READ

The CI shows the data overlaps, and thus there is no statistical significance between .69 and .73 (And the bands were Cumulative, meaning the 1 km band included the reductions in the 500 m band)

Arthur
 
so where does that mention 1 km? infact what you quoted DIRECTLY contradicts what you previously stated.

No it doesn't.

There were cameras placed NATIONWIDE: 62 fixed speed cameras, 57 speed sites, 61 speeding sites.

But each individual camera study only included data on crashes out to 1 km.

2 cumulative distance bands: 500m, 1Km.


These reductions were comparable for all monitored lengths e.g. up to 250m, 500m and 1 km.

Arthur
 
Asguard you shouldn't call people Idiots as it will always come back and bite you in the ASS....

...Now go back, read it, and then come back and apologize...Arthur

<sigh> good luck getting the apology. He calls people names as a way of trying to teach them something
:shrug:
 
There is a logical solution to the problem you are complaining about, and that is to change the speed laws on the open roads.

I believe that if they changed the speed limit to 80 mph, or even 85 mph, many people would start driving at 90-100 mph. Most people (foolishly) rate themselves as better than average drivers (based largely on the "illusion of control" cognitive bias), so when they see a posted speed limit, they see that as the speed limit for people like you, the average driver, it's only a guideline for a superior driver like themselves. As soon as a significant fraction of drivers start thinking that, others who were on the fence see people blowing past them, so they speed up too. Eventually the late adopters see a lot of people blowing past them, and it becomes clear that it would be safer to speed up to be a speed bump for the people zooming around you, so they speed up.

I suspect you'd be better off posting *no* speed limit and letting people know they will be ticketed for creating unsafe driving conditions (either by driving too fast or too slow to the traffic conditions, including the speed of your fellow drivers).
 
I believe that if they changed the speed limit to 80 mph, or even 85 mph, many people would start driving at 90-100 mph. Most people (foolishly) rate themselves as better than average drivers (based largely on the "illusion of control" cognitive bias), so when they see a posted speed limit, they see that as the speed limit for people like you, the average driver, it's only a guideline for a superior driver like themselves. As soon as a significant fraction of drivers start thinking that, others who were on the fence see people blowing past them, so they speed up too. Eventually the late adopters see a lot of people blowing past them, and it becomes clear that it would be safer to speed up to be a speed bump for the people zooming around you, so they speed up.

I suspect you'd be better off posting *no* speed limit and letting people know they will be ticketed for creating unsafe driving conditions (either by driving too fast or too slow to the traffic conditions, including the speed of your fellow drivers).

I was only suggesting the higher speed limit on the open road if they are going to use traffic cam speed control. I don't care how good people feel they are at driving and neither do the cameras. Stiff fines will increase revenue and discourage excess speed. Also on the open road they shouldn't have any cam warnings. Let people see where they are when they get the ticket in the mail. Probably some system of moving the cameras around would be most effective.
 
I suspect you'd be better off posting *no* speed limit and letting people know they will be ticketed for creating unsafe driving conditions (either by driving too fast or too slow to the traffic conditions, including the speed of your fellow drivers).

That was tried in Montana. Didn't work.
 
I recieved the following email today at 10:58 but can't seem to find the post in this topic. But I will answer it anyway.

adoucette has just replied to a thread you have subscribed to entitled - Speed cameras save lives - in the Science & Society forum of SciForums.com.

This thread is located at:
http://www.sciforums.com/showthread.php?t=110123&goto=newpost

Here is the message that has just been posted:
***************
Who pays for a ticket in the mail when there are multiple drivers?
***************


There may also be other replies, but you will not receive any more notifications until you visit the forum again.

All the best,
SciForums.com

When you get the ticket, they also include a picture that clearly shows who's behind the wheel. Not any guess work about who was driving.:D
 
You can tell who this is from a speed camera?

article-0-0A217BCF000005DC-210_634x513.jpg


drivingban.jpg


art.jpg

I may not be able to tell. But I'll bet who ever gets the ticket in the mail will know who it is, and it's up to the registered owner of the car to prove they weren't driving. If they are successful at that, they will be asked who the driver was and where they can be contacted. With the right responses you can get out of paying the ticket, but they don't make it easy on you to do that. The picture you get will be a frontal shot straight through the windshield.
 
So now I have to prove I'm innocent?

Thanks

Here's how I know what I know. Many years ago I was visiting a friend in Tucson. He does have a drivers license but because of eyesight he just barely qualified for it. He needed to go to Phoenix and asked me to drive his car. Neither one of us knew about the cameras, anyway sometime after I left, he got the ticket in the mail. Even showed me the picture. He had to show them his drivers license and convince them he didn't know where I could be contacted, which he did. :D
 
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