Art has an incredible communicative power, especially in regards to concepts that are otherwise hard to verbalize or explain. In the world of urban planning, art could be a great way to improve public understanding of projects, acceptance of new ideas, or simply to expand the idea of the city from a place to an evolving and interactive experience.
I'm no art historian, but I've seen my share. I enjoy a museum every now and again. I've visited various galleries and MOMAs. I've even been to the Louvre. (Fun fact: the 'R' is silent!) And in my daily scouring of the web for urban planning news, I've come across a handful of pieces that place a magnifying glass over the city, urban life and the development and use of land.