Some people seem to be great enthusiasts for autonomous braking. I saw a post recently on another forum about a chap driving his wife's car and having a 'moment' because he'd forgotten it didn't have auto-braking.

I've only driven one car with auto-braking, a hired Golf.that I found maddening. It repeatedly braked just as I moved my foot to do it myself - what does that teach a driver? Not to bother?

It also braked hard when it 'saw' a car joining the dual carriageway ahead of me - I was in lane 2 at the time.

If drivers start leaving it to the car to do the braking, will we be more, or less, safe?

I suspect a vastly contrasting colour to your surroundings - say bright red - might work better in many environments (e.g. the countryside) than lime green / yellow with a silvery white reflective strip.

The problem comes that in urban areas, the environment changes quite a bit and thus what works 100m ago may not so much later on. I recall that some people (can't quite remember who - it may be LU operatives) us a combo of pastel blue and shocking pink for some hi-vi jackets.

Subaru use Eyesight camera technology mounted behind the interior mirror.

However isn't the idea of hi viz to make you more visible so the driver can actually apply brakes and not rely on tech?

This tech surely must suffer from problems associated with the camera / detector (external ones) being obscured by objects or dirt, and similarly (with rain/ice added) for those mounted on the front of the rear view mirror as regards the front windscreen.

Some modern systems cannot pick up hi vis vests there was a reason for it but I can`t find it at the moment