Public transport routes are like water channels criss‑crossing cities, irrigating their different districts. Each line tells, in its own way, the chapter of a bigger story. Inspirational stuff for artists and photographers in particular, always on the look out to get a unique shot. Situations, faces and moods brought together by urban transport. Realist, dream‑like, funny and sometimes moving… discover in the following pages the many facets of New York, London and Singapore. Three cities revealed by their transport systems.