I just returned from my first Transportation Research Board meeting, which was an amazing experience. Thousands of academics and professionals--engineers, planners, mostly, but at least three historians--met in Washington to discuss transportation. Apparently, this meeting has been growing quickly over the last decade, and it is now one of the largest subject-specific conferences there is. I think it testifies to the need for vibrant interdisciplinary forums, and I am sure it could be a model for many areas of inquiry.
I produced my first poster for the event. It is a preview of one of my current projects: a book on the Chicago Skyway.