BETTER THAN LIGHTS.

Evening Star, Issue 22026, 11 May 1935, Page 2

BETTER THAN LIGHTS.

New motoring regulations are under discussion at present in Edinburgh, and the * Weekly Scotsman ’ says that the extent to which a proper' observance of signal lights will figure in the tests has not transpired; but signal lights may operate adversely to an applicant because to a large section they are unsuitable colours. In a lecture on psychology tests at the Heriot-Watt College, Professor e Drover said it was surely an absorb circumstance that the signal lights we use are those colours most frequently confused by colour defectives, when Simple alternative methods could be adopted. One might be forms instead of colours—-circle, triangle, and square—or a very simple arrangement might be lines at rightangles, two horizontals to signify “ stop,” two vertical for “ go,” and one or three for “ caution.”