Does anyone know the name of the artist that paints on the street?

Question

He is an urban artist that scketches pictures right on the floor, outdoors, like two persons falling in a hole on the floor or a street stair painted as a waterfall. Thanks.

Answer 1

Do you mean Julian Beever?
http://users.skynet.be/J.Beever/pave.htm
http://www.rense.com/general67/street.htm

Answer 2

Yes, you're talking about Julian Beever. I've received a powerpoint forward with his amazing images.