MGF wrote: All drivers drive at a speed they believe they can stop in the distance they can reasonably expect to remain clear unless they admit to driving recklessly.
MGF wrote:If one seeks an unofficial rule that does a bit of both no one would use the expression 'you can reasonably expect to remain clear' unless they were trying to do something more than make a helpful statement.
As a 'rule' anything like that is a waste of breath unless 'calibrated', typically by an examiner or jury. Hence why I said:
Horse wrote: "Be able to stop in the distance which it is reasonable to expect remain clear"
I deliberately didn't include 'which you can', as 'you' may lack the necessary imagination, observation, scanning, etc.