Interactive artwork commissioned by the city of Eindhoven (Netherlands) the project has been developed in close collaboration with Philips and Heijmans. The artwork entitled Zwerm (meaning swarm in Dutch) will mimic the coordinated movement of for example a flock of sparrows and will be following different streams of traffic on and under the, to be built, Montgomery overpass (2019). The entire installation spans a width of 21 meters and a length of over 60 meters. Zwerm will be reacting to levels of activity in the direct surrounding of the sculpture in a subtle manner. The imposing scale (a continuous loop of over 200 meters) of this dynamic, interactive intervention (1400 LED lights), going above and under ground, connecting different flows of traffic, strives to maximise an integrated experience in the urban landscape. The work forms a continuation of light installations designed by Frank Tjepkema in the public domain started in 2014 with Light Bridge for the Amsterdam Light Festival.