By defending the thesis entitled »Determining Carpooling Trip Origin Locations in Urban Areas« Ivan Grgurević, Department of Information and Communication Traffic member, has obtained his PhD academic degree in the area of technical sciences, in the field of transport technology at the Faculty of Transport and Traffic Sciences. PhD Thesis defence committee consisted of: Prof. Dragan Peraković, PhD (Chair of the committee), Prof. Zvonko Kavran, PhD (mentor), Prof. Gordana Štefančić, PhD and Prof. Davor Brčić, PhD from the Faculty of Transport and Traffic Sciences, and Prof. Planko Rožić, PhD from the University of Zagreb Faculty of Civil Engineering.