Restriction signs and depth indicators

Following on from the previous article "Supplementary plates for warning and restriction signs", this article looks at restriction signs and depth indicators, which needs to be converted to metric-only.  This article gives examples of metric-only signs for height restrictions, width restrictions, and length restrictions signs, signs warning of restrictions ahead, and correcting the symbol on the already metric weight restriction signs.  In addition to this, an example of a metric-only depth indicator is shown.

OLED wallpapers could make light bulbs obsolete by 2012

Organic Light Emitting Diode (OLED) wallpapers require very little power to produce light, and uses 2.5 times less power compared even to energy saving light bulbs. At the same time OLED wallpapers can emit almost as much light as a flourescent lamp, if not more, whilst lasting longer than a fluorescent lamp. The OLED surfaces can be printed on walls in homes and businesses, and can even be printed onto road signs (and the lighting for the road signs can be solar powered).  OLED wallpapers can as a result make light bulbs obsolete and benefit the environment in terms of reduced energy needs and lower carbon dioxide emissions.