I found this random bit of graffiti art on what I think is a power box for the pedestrian crossing light where the Park Connector path crosses Pasir Ris Drive 1 at Pasir Ris Town Park.
I don’t know what the significance is, but the word “chan” makes me think of the popular internet image boards 4chan and 2chan, where it’s short for ‘channel’. Or… it could be someone’s name. Who knows? It also looks like there used to be a robot graffiti and some sort of square shaped graffiti on there too.