Dial4Light Lets the Mobile Phone turn on the Street Lights

Hi guys.This is an interesting article.It is a well known fact that street lights are the most energy consumers in each country.They glow entire night which is of no use.But its presence in the night time is important as some persons may cross the road some times.If so is the case then why should the street lights glow the entire night.Is there any options to make them glow at needed times.Yes there is
In the German countries,they have introduced Dial4light concept.This is a system that allows the user to turn on street lights with their mobile phone. Once they have dialed up to turn the light on, the light will automatically go off after about 15 minutes.With the advent of this plan,German electric usage has dropped by 25%.Isn't it great.Thanks for your time.