Roads play a dominant role in connecting. At the same time, from a sustainability perspective, their design, construction and operation are not always so simple. Achieving sustainability in this process requires measures such as the use of advanced and recycled materials, urban design sensitive to water and project management aimed at minimizing negative environmental impact. Building and managing roads in an environmentally and socially responsible way is possible. While roads are essential to transport and communication links, there are concerns about their sustainability. In particular, although roads have economic and social benefits, their impact on nature and the environment is worrying. This paper deals with the management of road construction projects for the purpose of sustainable development of the City of Zagreb. To gain a better insight into the current situation, an empirical study was conducted using the in-depth interview method. The sample of respondents consisted of two experts who were part of the team in charge of managing the EU Project „Rotor Remetinec“. Ways in which road construction project management can contribute to greater sustainability are explored. The project, regardless of its complexity and scope, was completed within the given costs, expected quality and the stipulated time, thanks to the professional leadership and the project team. Its completion drastically reduced the number of traffic accidents, brought satisfaction and safety to users, reduced the emission of harmful gases into the air and contributed to the development of the community and the economy.