• 2007. - University of Zagreb, Faculty of Transport and Traffic Engineering, doctoral studies
• 2000. - University of Zagreb, Faculty of Transport and Traffic Engineering, postgraduate studies,
• 1995. - University of Zagreb, Faculty of Transport and Traffic Engineering, graduate studies

• 2012. - today - Scientific Adviser, President of the Scientific Council, Institute for tourism, Zagreb
• 2011. - 2012. - Zg projekt d.o.o., head manager, head traffic projects manager, Zagreb
• 1995. - 2011. – Institute of transportation and communications, Member of the Management Board, Director, Zagreb

• Traffic and spatial planning
• Traffic in cities
• Road safety
• The relationship between transport and tourism

• Interni znanstveni projekt: Suvremeni pristup prostornom i prometnom planiranju na načelima održivog razvoja (SPLAN), voditelj projekta
• Studija predizvodljivosti za određivanje lokacije kongresnog centra Zagreb, naručitelj Grad Zagreb, 2018.
• Satelitski račun turizma Republike Hrvatske za 2016. godinu: Razvoj statističke osnove i procjena unutarnje turističke potrošnje, naručitelj: Ministarstvo turizma Republike Hrvatske, 2017.
• Operativni plan  razvoja cikloturizma Zagrebačke, naručitelj: Zagrebačka županija, 2017.
• Operativni plan razvoja cikloturizma Podravine i Prigorja, naručitelj: Koprivničko-križevačka  županija, 2017.
• Operativni plan razvoja cikloturizma Krapinsko-zagorske županije, naručitelj: Krapinsko-zagorska županija, 2017.
• Operativni plana razvoja cikloturizma Karlovačke županije sa standardima, naručitelj: Karlovačka županija, 2017.
• Operativni plana razvoja cikloturizma Požeško-slavonske županije, naručitelj: Požeško-slavonska županija, 2017.
• Ocjena ponuda za izradu I faze Master plana prometnog sustava Grada Zagreba, Zagrebačke županije i Krapinsko zagorske županije, naručitelj: Grad Zagreb, 2015.
• Akcijski plan razvoja cikloturizma, naručitelj: Ministarstvo turizma, 2014.
• Prometna studija utjecaja izgradnje dvorazinskog čvora na autocesti A-2 u zoni Grada Zaprešića na koncesijsko područje tvrtke autoceste Zagreb-Macelj d.o.o., naručitelj Trgovački Centar Zagreb d.o.o., 2014.
• Plan provođenja temeljnih prometnih istraživanja Grada Zagreba, naručitelj Grad Zagreb, 2013.
• Prometni projekt poboljšanja odvijanja prometa i povećanja razine sigurnosti na području Gradskog kotara Jug u Gradu Čakovcu, naručitelj Grad Čakovec 2013.
• Analiza cestovnog prometa i infrastrukture na području gradskog kotara Jug u gradu Čakovcu, Grad Čakovec, 2013.
• Osnovne marketinške smjernice specijalne bolnice za medicinsku rehabilitaciju Naftalan u Ivanić Gradu, naručitelj SB Naftalan 2013.

• Kos, G., Ivandic, N., Vidovic, K.:  Tourism as a Factor of Demand in Public Road Passenger Transportation in the Republic of Croatia, Tehnicki Glasnik-Technical Journal   Vol.  14 (1), p. 76-87, 2020. DOI: 10.31803/tg-20191210120738
• Vidovic, K., Sostaric, M., Mandzuka, S., Kos, G.: Model for Estimating Urban Mobility Based on the Records of User Activities in Public Mobile Networks, Sustainability, Vol. 12(3), article number: 838, 2020. DOI: 10.3390/su12030838
• Kos, G., Krasic, D., Feletar, P., Brlek, P.: Development and potentials of sports-recreational aviation and avio tourism in Croatia, Tourism, Vol. 67(4), p. 438-450, 2019.
• Kos, G., Caric, H., Kuncevic, P.: Evaluating and Selecting a Congress Centre Location Based on Analytic Hierarchy Process Case Study: Congress Centre Zagreb, Prostor, Vol. 27(2), p. 299-309, 2019. DOI: 10.31522/p.27.2(58).9
• Kos, G., Ševrović, M., Jović, J.:   Harmonization and synchronization model of interrupted traffic flows on motorways.  Transport, Vilnius, Lithuana, 2018, p. 364-369. DOI: 10.3846/16484142.2016.1236352
• Huzjan, B., Mandžuka, S., Kos, G.: Real-time Safety Management Model on Motorwasys. Technical gazette, accepted for publication, Vol. 24(5), Slavonski Brod, 2017. ISSN 1330-3651.  DOI: 10.17559/TV-20150331093202
• Zovak, G., Kos, G., Huzjan, B.: The Driver Behaviour and Impact of Speed on Road Safety on the Motorways In Croatia. Promet - Traffic - Traffico,  accepted for publication, Vol. 29(2), Zagreb, 2017.  DOI: 10.7307/ptt.v29i2.2071  
• Horvat, R., Kos, G., Ševrović, M.: Traffic Flow Modelling on the Road Network in the Cities. Technical gazette, Vol. 22(2), Slavonski Brod, 2015, p. 475-486. DOI: 10.17559/TV-20150127093334
• Ševrović, M., Brčić, D., Kos, G.: Transportation Costs and Subsidy Distribution Model for Urban and Suburban Public Passenger Transport. Promet - Traffic - Traffico, Vol. 27(1), Zagreb, 2015., p. 23-33.  DOI 10.7307/ptt.v27i1.1486
• 16484142.2016 Kos, G., Brlek, P., Franolić, I.: Rationalization of Public Road Passenger Transport by Merging the Bus Lines on The Example of Zadar County. Promet - Traffic - Traffico, Vol. 24(4), Zagreb, 2012., p. 323-334. DOI 10.7307/ptt.v24i4.439
• Županović, D., Anžek, M., Kos, G.: Optimisation of Signal-controlled Intersection Capacity. Promet - Traffic - Traffico, Vol. 22(6), Zagreb, 2010., p. 419-431.  ISSN 0353-5320. DOI:  10.7307/ptt.v22i6.207
• Kos, G., Milojević, D., Feletar, P.: Ranking of dangerous sections of road network in Medimurje county by means of AHP method.  Podravina, Vol. XVI(31), Koprivnica, 2017., p. 136-147. ISSN 1333-5286.
• Kos, G., Milojević, D., Feletar, P.: The Evaluations of Road Traffic in the City of Slatina With Development proposals.  Podravina, Vol. XIV(28), Koprivnica, 2015., p. 33-48. ISSN 1333-5286.
• Kos, G., Klarić, Z., Feletar, P.: Bicycle Route Management Model: The Example of Bjelovar-Bilogora Route. Podravina, Vol. XIII(26), Koprivnica, 2014., p. 76-90. ISSN 1333-5286.
• Kos, G., Milojević, D., Feletar, P.: Road Infrastructure of Međimurje County with Development Proposals. Podravina, Vol. XIII(25), Koprivnica, 2014., p. 45-62.  ISSN 1333-5286.
• Kos, G., Feletar, P., Orešić, M.: Transport and Tourist Valorization of the Podravska magistrala road. Podravina, Vol. XII(24), Koprivnica, 2013., p. 150-165.  ISSN 1333-5286.
• Kos, G., Milojević, D., Feletar, P.: Development of the Traffic System in the City of Virovitica as the Center of Podravina Area. Podravina, Vol. XI(21), Koprivnica, 2012., p. 186-205.  ISSN 1333-5286.
• Dadić, I., Kos, G., Brlek, P.: The Role of Roundabouts in Traffic Network Design.  Promet-Traffic-Traffico, Vol. 15(1), Zagreb, 2003., p. 32-39. ISSN 1332-070X.
• Dadić, I., Kos, G., Brlek, P.: Application of Changeable Message Signs in Traffic.  Promet-Traffic-Traffico, Vol. 15(5), Portorož, Trieste, Zagreb, 2002., p. 307-314. ISSN 0353-5320
• Dadić, I., Kos, G., Brlek, P.: Possibilities of Improving the Zagreb Traffic System Using Methods of Traffic Flow Organisation and Regulation. Promet-Traffic-Traffico, Vol. 14(1), Zagreb, 2002., p. 47-54.  ISSN 1332-070X.

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