SafeSpeed wrote:
itschampionman wrote:
SafeSpeed wrote:
PeterE wrote:
I hope you're not suggesting you can't read a number plate at 67 feet. I would have thought that was a bare minimum for having good enough eyesight for driving - and one that can be passed with little or no peripheral vision.
I'm very concerned about the risks of poor peripheral vision, but I'm not at all convinced about the numberplate test representing a minimum standard.
After all, neither of us could pass the number plate test in heavy rain, but that does not make us crash. Instead we adjust our plans to available vision.
But compound the degradation caused by the rain and poor vision and the driver performance is worse that that of a driver who has normal vision. You really struggle with compounded factors don't you!
Steve, you are a character aren't you?
The limitations to vision do not "compound" in the range that we're talking about. Anyway normal responsible motorists are still capable of moving a car around safely even if vision is reduced to 10 or 15 yards fog.
So what if someone else can see better or worse than we can? The question has to be, "Can this individual see well enough to drive safely?".
I don't dispute the number plate test as a rough guide, but it sure as hell isn't an absolute limit to safe driving.
A decent eye test, especially with a test of peripheral vision and night vision might well be closer.[edited to correct "feet" to "yards"]
I definitely agree with you on this Paul, as peripheral vision is a potential life saver, acting as a sort of 'spidey sense'
As for night vision, I never really knew until I joined the police about night blindness. I first came across this in a colleuge, who at night was totally unable to judge distance, or take in rapid information. This lead to me driving a lot on night shifts.
I've just had an eye exam, and have the minimum standard of vision for driving without glasses. I do however wear glasses when I drive, as it sharpens up index numbers, and enables me to easier to identify my naughty clients
