Smart cities of the future M. Batty, K.W. Axhausen, F. Giannotti, A. Pozdnoukhov, A. Bazzani, M. Wachowicz, G. Ouzounis and Y. Portugali Eur. Phys. J. Special Topics, 214 (2012) 481-518 Published online: 05 December 2012 DOI: 10.1140/epjst/e2012-01703-3