Rush hour traffic rhythms, ticking lights, tyres on rails

One of the busiest corners in Berlin. Trams rumble and clatter heavily across steel rails, tyres flap rhythmically over the tram tracks, cyclists pass in droves, pedestrians wait patiently. All movements are controlled by the lights that tick, red, yellow, green, directions, speeds and timings. It looks fluid, but is very disciplined. Almost everyone does exactly as expected. Impressive social/cultural agreement found less in other cities.