Intelligent traffic management systems (ITS) represent a key component of the modernization of transport infrastructure and the increase of the efficiency of transport networks. In the Republic of Croatia, ITS systems were early recognized and introduced primarily in scientific and secondary education. Intensive implementation of ITS applications began with the development of highways at the beginning of the new millennium, but the lack of a systematic approach at the national level resulted in reduced interoperability, increased maintenance costs and poor coordination. Croatia's entry into the European Union enabled the improvement of the legislative framework and the adoption of planning guidelines for ITS projects. Despite satisfactory research and development capacities, the biggest challenge remains the insufficient connection with the economy. The establishment of the Coordination Body for the Development of Intelligent Transport Systems in Croatia in 2021 marks a step forward in achieving a systematic approach, improving interoperability and integration with European standards, and strengthening the connection between education and industry.