But Berliners, East-berliners specifically, made their own history with the design of the unique Ampelmännchen (crossing-light men) pictured above. The short, chubby, hatted figure stepping smartly out or standing roundly at attention has evolved to a cult-figure and symbol of the former East. Thanks to the "rescue committee" established to prevent its replacement by the western standard crossing signal after the fall of the Berlin wall, this figure has survived to indicate not only when it is safe to cross but also that you are in the former East Berlin territory. Now the green revolution is mixing things up a bit: the installation of LED technology is bringing the Ost-Ampelmann to (former) West Berlin.Like many other cities, Berlin is replacing old traffic lamps with Light-emitting Diode (LED) lights to achieve 70-90 better energy efficiency as well as significant maintenance savings (the old light-bulbs needed replacing several times a year, while the LED lamps will be cleaned only once per year and have a guaranteed five-year lifespan with an expectation of double that). The observation is spreading that as the new LED lights go in, the East Berlin crossing man is going in too. No longer limited to t-shirts and key rings in the west, it seems the stouter figure of the Ost-Ampelmann lends itself to the new LED technology.
In addition, Berlin traffic control is setting an example for the benefits of the young market for competitive power providers in Germany: today the Berlin traffic lights are powered exclusively by eco-friendly electricity, through a special contract. Although the provider guarantees only 50% from renewable resources (the rest in the worst case to come from environmentally friendly power plants relying on natural gas), 100% of the power distributed in 2003 and 2004 derived from renewable energy sources such as water, wind and solar power. Is it a sign of the government's commitment to green energy? No: the green energy supplier was the lowest bidder!