music / performance
Dutch traffic lights make a ticking sound to help the visually impaired cross the street. The lights tick in a slow tempo when they are red, and if they tick fast the light is green.
At crossings with more than one traffic light you can hear that every light ticks at a slightly different tempo. This causes the rhythms to phase.
SRTL (Steve Reich Traffic Lights) is a performance done by four brass / woodwind
musicians playing along with the ticking of four traffic lights. They all repeat one note along
with the ticking of one specific light.