I've been doing some quick research:
Backing up my idea that gov't propaganda helps shape the public's perception of speed limits and their importance:
Simply lowering the speed limit is unlikely to result in any significant change unless it is
backed up with suitable levels of enforcement and publicity. Preceding this in the Australian
context was the need for community support...
This report (3 PDFs) goes on to say that the public's perception of a 'safe speed' can vary depending on the type of road and its surroundings. This would certainly make a difference to the witnesses in the case of the linked-to thread, who might assume that a road's safe speed is a lot lower than the driver of the Honda, who knew the road very well.
Meanwhile, this quote tends to work against the speeder, and says something particularly profound:
While serious crashes are quite common when considering the entire motoring population, for an individual driver, they are very rare. "It is still quite possible for an individual driver to engage in regular 'moderate' speeding for a long time without disastrous consequences….Therefore, what a great many drivers erroneously learn from personal experience is that 'moderately' fast driving is 'safe.'"
Alas I was unable to find the report I mentioned earlier about perception changes as a result of propaganda.
This is stupid. If someone's doing sixty in an eighty zone and you've got a clear but short passing lane, you're far safer to pass him at a high speed than a low one. Think about it - some passing lanes are only a few hundred metres long, who but an idiot thinks that's long enough to pass anything but a stationary vehicle?No its not. It what I would expect and hope would happen. doing 100 km/h in an 80 zone to over take someone doing 75 km/h is no different in doing 100km/h in an 80 zone. It is speeding. It is reckless. It is selfish
The fact is if you're following someone who's doing 5 under the limit you MUST speed to pass them. At a speed difference of 5km/h you're looking at more than 20 seconds to pass a truck (actually a lot more allowing for space on each end), hanging out in oncoming traffic, during which time you've covered 450 highway metres for the truck's length alone.
I really don't think you've thought this through: You're saying that it's better to either spend 30+ seconds and a large portion of a kilometre in the wrong lane, or spend the afternoon behind someone waiting for a longer passing lane?
Sorry, I think it's better to wind it up and get the job done inside of 200 metres and 15 seconds.
As an aside...
Yeah, like the lowest common denominator. Have you seen the official government stats for 60->zero braking time and reaction time? It's preposterous to think that government stats - and I apologize for not having them to hand to prove it - suggest that it takes ONE POINT THREE SECONDS to react to a threat on the road. 1.3 seconds? Were they napping at the time? And the stopping distance seems to be a stat taken from a 20-year-old Holden. The rules are not designed with us in mind, they're designed for your grandfather.The roads are zoned based on road quality, road width, population and no doubt a few other factors.
Oh, here's one, from the NSW government:
Reasonably sure I could cut that stopping distance in half. Now, where's my measuring tape?
Aha! According to this page the 100->0 stopping time for a Megane 225 is less than 36 metres.
Studies show that driving BELOW the average speed is more dangerous than driving ABOVE It. You're basically increasing the risk of accidents by advocating a no-passing policy. Drivers doing 10km/h over the average are statistically least likely to be involved in an accident.
Sorry man, the numbers say your idea is more dangerous, not less:
Also from the PDF:
The standard of road safety management in Australia is more than ten years out of kilter with internationally accepted practice. [...] Tragically for road safety, instead of revising speed limits to this standard, state governments use it to determine which sites are the most lucrative locations for speed cameras.