1. Associate Professor, Istanbul Technical Univ., Faculty of Architecture, Dept. of Urban and Regional Planning, 34437 Taskısla, Taksim, Istanbul, Turkey.
2. Professor, Delft Univ. of Technology, OTB Research Institute for the Built Environment, Urban and Mobility Studies, Jaffalaan 9, 2628 BX Delft PO Box 5030, NL-2600 GA Delft, The Netherlands. E-mail: