HC Deb 09 December 1969 vol 793 c52W
47. Mr. Brian Parkyn

asked the Minister of Transport whether he will reconsider his decision to change speed limits to kilometres per hour and instead adopt Système Internationale units and change to metres per second.

Mr. Mulley

I think that kilometres per hour will be much more understandable to most drivers. It is a recognised variant of theSystéme Internationale and is the general practice in Europe.