Municipalities in the Czech Republic are increasingly deploying smart traffic lights with radar that detects the speed of approaching vehicles and turns the signal red to slow them down to the required speed limit. Currently there are about 100 installations because mayors believe they are more efficient than speed cameras or speed humps. According to one mayor, over 90 per cent of drivers slow down because of the technology.<BR><BR>The traffic light system contains a microwave radar sensor which measures speed. If an approaching vehicle is travelling at lower than 50km/h, the light changes to orange and then green. If it is higher, the light remains red.<BR><BR> <P>기사원문보기 : <A href=&quot;http://www.itsinternational.com/categories/enforcement/news/czech-republic-deploying-smart-traffic-lights-to-combat-speeding/&quot;>http://www.itsinternational.com/categories/enforcement/news/czech-republic-deploying-smart-traffic-lights-to-combat-speeding/</A></P>