Lucas was able to play with the colour of the traffic lights by adjusting the ‘temperature’ in post production (hence the green light looking blueish in #4). The ethereal results became a series simply entitled, Traffic Lights. http://www.behance.net/gallery/Traffic-lights/13150627
Lucas has been shooting professionally since 2009, working around the world and holding his first exhibition in Beijing last year. In December of 2012 he partnered with Maria Le Quang and founded LUMA Visual Creations, a photography group based in the German cities of Landau, Würzburg and Weimar.
Found on http://twistedsifter.com/2013/12/traffic-lights-in-the-fog-by-lucas-zimmerman/