jm + road-safety 6
[1801.02780] Rogue Signs: Deceiving Traffic Sign Recognition with Malicious Ads and Logos
january 2018 by jm
Well, so much for that idea.
signs
road-safety
roads
traffic
self-driving-cars
cars
avs
security
machine-learning
computer-vision
ai
We propose a new real-world attack against the computer vision based systems of autonomous vehicles (AVs). Our novel Sign Embedding attack exploits the concept of adversarial examples to modify innocuous signs and advertisements in the environment such that they are classified as the adversary's desired traffic sign with high confidence. Our attack greatly expands the scope of the threat posed to AVs since adversaries are no longer restricted to just modifying existing traffic signs as in previous work. Our attack pipeline generates adversarial samples which are robust to the environmental conditions and noisy image transformations present in the physical world. We ensure this by including a variety of possible image transformations in the optimization problem used to generate adversarial samples. We verify the robustness of the adversarial samples by printing them out and carrying out drive-by tests simulating the conditions under which image capture would occur in a real-world scenario. We experimented with physical attack samples for different distances, lighting conditions, and camera angles. In addition, extensive evaluations were carried out in the virtual setting for a variety of image transformations. The adversarial samples generated using our method have adversarial success rates in excess of 95% in the physical as well as virtual settings.
january 2018 by jm
Collision Course: Why This Type Of Road Junction Will Keep Killing Cyclists
january 2018 by jm
This aspect of road design had never occurred to me, but once explained it makes sense. Great article on the design of an oblique crossroads junction and how it's unexpectedly dangerous due to human factors and car design.
cars
cycling
road-safety
safety
accidents
traffic
junctions
road-design
design
human-error
human-factors
“Human error” may be real, but so are techniques to mitigate or eliminate its effects — and driver training is poor when it comes to equipping people with those techniques, let alone habituating them. (And let alone reviewing knowledge of those techniques every few years.)
january 2018 by jm
The criminal exploits of "Prawo Jazdy"
march 2017 by jm
Excellent policing folklore here....
'Eventually a letter was sent to the Polish embassy to ask for the Polish government's assistance in bringing this rogue motorist to justice.
Their reply was as swift as it was courteous. It said "Prawo Jazdy is Polish for driver's license".'
gardai
policing
ireland
polish
driving
safety
road-safety
funny
anecdotes
'Eventually a letter was sent to the Polish embassy to ask for the Polish government's assistance in bringing this rogue motorist to justice.
Their reply was as swift as it was courteous. It said "Prawo Jazdy is Polish for driver's license".'
march 2017 by jm
California Says Motorcycle Lane-Splitting Is Hella Safe
lane-splitting
cycling
motorcycling
bikes
road-safety
driving
safety
california
march 2015 by jm
A recent yearlong study by the California Office of Traffic Safety has found motorcycle lane-splitting to be a safe practice on public roads. The study looked at collisions involving 7836 motorcyclists reported by 80 police departments between August 2012 and August 2013.
“What we learned is, if you lane-split in a safe or prudent manner, it is no more dangerous than motorcycling in any other circumstance,” state spokesman Chris Cochran told the Sacramento Bee. “If you are speeding or have a wide speed differential (with other traffic), that is where the fatalities came about.”
march 2015 by jm
Why Sweden Has the World's Safest Roads
january 2015 by jm
Nearly half the EU-wide average.
sweden
safety
engineering
road-safety
pedestrian
roads
cycling
Sweden has also created 12,600 safer pedestrian crossings with features such as bridges, flashing lights, and speed bumps. That’s estimated to have halved pedestrian deaths over the past five years. The country has lowered speed limits in urban, crowded areas and built barriers to protect bikers from incoming traffic. A crackdown on drunk driving has also helped.
january 2015 by jm
Schneier on Security: Excess Automobile Deaths as a Result of 9/11
risk
security
death
9-11
politics
screening
dhs
air-travel
driving
road-safety
september 2013 by jm
The inconvenience of extra passenger screening and added costs at airports after 9/11 cause many short-haul passengers to drive to their destination instead, and, since airline travel is far safer than car travel, this has led to an increase of 500 U.S. traffic fatalities per year. Using DHS-mandated value of statistical life at $6.5 million, this equates to a loss of $3.2 billion per year, or $32 billion over the period 2002 to 2011 (Blalock et al. 2007).
september 2013 by jm
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