Thanks to the Roadguy at the Star and Tribune for his post on road art. Here is a video of one of the street art projects. I don’ think this follows the Manual on Uniform Traffic Control Devices.
From the You Tube Video – In Dun Laoghaire the “Festival of World Culture” took place from
21. to 24. of August 2008. Edgar Müller has followed the invitation and
continued his series of large-sized 3D Street Art there. For this
year’s Festival of World Cultures renowned German street painting
artist Edgar Müller transformed a huge slice of the East Pier into a
dramatic ice age scene. This project was supported by the Goethe
Institution Germany.