This art form comes from the long tradition of theatre in the Western world. Theatrical performance creates a break from reality, where actors play and perform defined roles. It may or may not follow a narrative, with a logical or poetical progression.
It can also use conventional front-facing staging or play with other formats such as installations or walking creations.
With its nooks and crannies, unpredictable terrain and perspectives, public space is perfectly suited to all these adaptations.
In theatrical performance, actors play a character. They use real movements to pretend to be someone else. When the character dies in a theatrical performance, the actor does not.