The workshop will consist of (1) invited talks reviewing the state of the art and discussing limitations of existing techniques, as well as fundamental difference between real and virtual urban societies; (2) contributed talks and posters presenting the new research results and novel work in progress; (3)Panel discussion on how and what research challenges need to be addressed to enable rapid creation of virtual urban environments for various applications. Some of the issues to be addressed may include but not limited to: The attendees may expect to learn new inter-disciplinary views on issues related to designing a virtual urban landscape populated with large-scale heterogeneous virtual crowds and foster new research collaboration.