The topic of this paper is the analysis and development of urban transportation infrastructure with an emphasis on environmental aspects and the application of new technologies. This paper will begin by providing a detailed description of urban transportation infrastructure, along with its historical background. The next section will focus on trends in urban transportation infrastructure, which will be thoroughly explained. Following that, examples of urban transportation infrastructure from both Croatia and around the world will be presented and analyzed. These examples will demonstrate how the transformation of urban transportation infrastructure could be implemented in various cities. Subsequently, the paper will explore the sustainability and environmental aspects of urban transportation infrastructure, including the reduction of CO2 emissions, promotion of public transport and alternative modes of transportation, as well as various challenges and opportunities for introducing ecological measures into transportation systems. Additionally, the significant impact of technology on urban transportation infrastructure will be discussed, particularly through smart travel planning applications, smart cities, and the Internet of Things (IoT) in transportation. The integration of transportation policy into urban planning, which results from collaboration between urban planners and transportation experts, as well as dialogue with citizens and stakeholders in the planning of transportation infrastructure, will also be described. Moreover, the financial aspects that are key to the development of urban transportation infrastructure will be highlighted. Finally, the conclusion will summarize the key insights and data presented throughout the paper.