In article , Chris
wrote:

On 17/02/2019 17:04, Ken Blake wrote:
On Sun, 17 Feb 2019 16:17:51 +0000, Stephen Wolstenholme
wrote:

On Sun, 17 Feb 2019 15:09:24 -0000 (UTC), Chris
wrote:

Actually, older drivers are generally safe. It's the young (men) that need
to be carefully checked in terms of the biggest risk to other road users.


That's true. When I was young I always drove much too fast. I was
usually trying to impress any girl I was with. One girl decided I was
a maniac and left me to go home on the bus.



I disagree. I think young drivers are often unsafe, and older drivers
are often unsafe because of poor vision, poor hearing, and poor
reflexes.

The safest drivers are the middle-aged.

The below suggests that the 60-79 age group is the safest (in the UK).
https://www.roadsafetyobservatory.co.../drivers/older

€ Ageing brings a number of sensory, psychomotor and cognitive
changes that may impact driving performance and safety.

in other words, older drivers are not the safest.

€ Although older drivers are overrepresented in deaths following a
car crash, this is mostly due to increased fragility.

that's a factor, but not as much as they claim.

except that deaths isn't the issue, but safe driving, which means
crashes.

€ In fact, accident involvement for older drivers is generally low.

because they drive less.

the numbers must be normalized to miles driven.

If the rate of slight injury is used as a proxy for accident
involvement it can be suggested that, when compared with young and
middle age groups, accident involvement is lowest for drivers aged
60-79, and only increases by 20% for drivers 80 and older (Mitchell,
2013).

slight injury is in no way a proxy for crash involvement.

as the article claims, older people are more fragile. what might be a
minor bruise at age 60 is an actual injury at age 80.