Samenvatting
The present official stop signs for use at night (a red light or a red light in combination with an illuminated white bat- type sign) are not sufficiently for road- users. For the present type of sign to meet the requirements in this respect it would have to be made far too large and heavy for a man to handle. A new stop sign has accordingly been developed, which in daylight looks the same as the existing one (a white disc with red edge) but differs from it when used at night in that it incorporates a red light and a small blue point light which flash alternately.