Hey lawtalkers, looking for a judgement quote

[Martinus]

Ok, this is a bit obscure reference, but I am looking for a quote from a judgement delivered by a famous UK judge, concerning security vs. efficiency. It specifically concerned a proposition that reducing the train speed would certainly reduce the number of train accidents but would make them useless as a way of transport.

I wonder if this rings the bell...

[Barrister]

Ok, this is a bit obscure reference, but I am looking for a quote from a judgement delivered by a famous UK judge, concerning security vs. efficiency. It specifically concerned a proposition that reducing the train speed would certainly reduce the number of train accidents but would make them useless as a way of transport.

I wonder if this rings the bell...

It sounds vaguely familiar, but I have no idea how to go about searching for it.

Do you have access to an English law database?

[ulmont]

Unfortunately, could only find the US version, which is less exciting:

[T]he owner's duty, as in other similar situations, to provide against resulting injuries is a function of three variables: (1) The probability that she will break away; (2) the gravity of the resulting injury, if she does; (3) the burden of adequate precautions.

https://en.wikipedia.org/wiki/Calculus_of_negligence