This is the “Yellow cab event” a 1969 art event by Joe Hawley, along with Mel Henderson and Al Young that is presently showing at the Berkeley Art Museum as part of the show “State of Mind” on California’s conceptual art movement of the 70’s. The artists had a large number of people hail a cab to the intersection of Castro and Market in San Francisco causing a huge traffic jam. They filmed it on foot and helicopter. I videoed it in the museum and I am showing it (with permission) because my friend Samm Hawley who died 2 years ago is one of the participants (driving in the first cab).
In 2016 I added the video's original music that was brought to my attention and of which I didn't know about and it was a nice surprise.