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Comment Re:Changed my mind (Score 4, Informative) 433

Was it Washington, DC?

Source

The [Washington] Post obtained a D.C. database generated from accident reports filed by police. The data covered the entire city, including the 37 intersections where cameras were installed in 1999 and 2000.

The analysis shows that the number of crashes at locations with cameras more than doubled, from 365 collisions in 1998 to 755 [in 2004]. Injury and fatal crashes climbed 81 percent, from 144 such wrecks to 262. Broadside crashes, also known as right-angle or T-bone collisions, rose 30 percent, from 81 to 106 during that time frame.
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The results were similar or worse than figures at intersections that have traffic signals but no cameras. The number of overall crashes at those 1,520 locations increased 64 percent; injury and fatal crashes rose 54 percent; and broadside collisions rose 17 percent.

Overall, total crashes in the city rose 61 percent, from 11,333 in 1998 to 18,250 last year.

Comment Re:Um (Score 5, Informative) 61

Doesn't really matter.

Anand from Anandtech writes:

My personal desktop sees about 7GB of writes per day. That can be pretty typical for a power user and a bit high for a mainstream user but it's nothing insane. ...
If I never install another application and just go about my business, my drive has 203.4GB of space to spread out those 7GB of writes per day. That means in roughly 29 days my SSD, if it wear levels perfectly, I will have written to every single available flash block on my drive. Tack on another 7 days if the drive is smart enough to move my static data around to wear level even more properly. So we're at approximately 36 days before I exhaust one out of my ~10,000 write cycles. Multiply that out and it would take 360,000 days of using my machine for all of my NAND to wear out; once again, assuming perfect wear leveling. That's 986 years. Your NAND flash cells will actually lose their charge well before that time comes, in about 10 years.

Comment Re:Protip: (Score 1) 367

The yellow light is there to warn you the light is changing so you have time to stop. Cities will put the public in more danger just to bring in higher revenue.

Nope!

Believe it or not, a 1985 & 1989 change to ITE standards for traffic signal timing added: "Allow easy identification of violators by law enforcement agents." as an objective for traffic signal timing.

Comment Re:Traffic Light Safety (Score 1) 367

The real problem is that yellow signal timing standards have been weakened.

thenewspaper.com covers the weakening of the standard here

Essentially, yellow signal timing needs to take into account human reaction time, the actual speed that traffic goes through an intersection, and time needed to clear the intersection. In 1976, the standard did.

1985 and 1989 revisions to the ITE standard made changes:
1989 standard: "It may be possible to use the posted speed as the approach speed." - Posted speed limits, as opposed to the actual speed that traffic goes through an intersection could be considered for setting yellow signal timing.

There are other changes detailed that impact yellow time.

Comment Re:tradeoffs (Score 1) 367

Actually, in a study in Washington DC, collisions of all kinds increased at red light camera intersections compared to signaled intersections without red light cameras.

The analysis shows that the number of crashes at locations with cameras more than doubled, from 365 collisions in 1998 to 755 last year. Injury and fatal crashes climbed 81 percent, from 144 such wrecks to 262. Broadside crashes, also known as right-angle or T-bone collisions, rose 30 percent, from 81 to 106 during that time frame. Traffic specialists say broadside collisions are especially dangerous because the sides are the most vulnerable areas of cars ...
The results were similar or worse than figures at intersections that have traffic signals but no cameras. The number of overall crashes at those 1,520 locations increased 64 percent; injury and fatal crashes rose 54 percent; and broadside collisions rose 17 percent.

source, Washington Post

Comment Re:It wasn't his Tweet (Score 1) 275

And in addition the yFrog CEO has come out to say publicly that there is no evidence that their password system was compromised.
http://www.foundingbloggers.com/wordpress/2011/06/yfrog-ceo-no-reason-to-believe-weiners-security-was-violated/

Now, who's filtering facts again?

And now here's the UPDATE: Reader "milowent" took up the challenge. Without knowing my password -- without hacking into my account -- he got a third image into my Yfrog account, using the simple technique explained above. Here's the image he sent me:

Source

Cannonfire says essentially 'they were able to post a picture to my YFrog account without my password'
YFrog CEO says 'There is no evidence our password system was compromised'

Can you see that the two are not mutually exclusive?

Police say: "The front door of the house was not tampered with"
Reporter says: "The burglar entered the house without opening the front door. He went in through the unlocked back door."

These two statements are not mutually exclusive either.

Comment Re:Alleged picture (Score 1) 275

YFrog disabled its post-by-email feature after this incident.

From the link:
Reader "milowent" took up the challenge. Without knowing my password -- without hacking into my account -- he got a third image into my Yfrog account, using the simple technique explained above. Here's the image he sent me:

YFrog apparently had a security hole that got plugged after this incident.

Comment Re:Modem? (Score 1) 615

Home pacemaker evaluation kits also have something similar to an acoustic modem. A little more forgiving than acoustic modems (One can use a modern cordless phone and just lay it down over the connection points.)

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