Vehicles, whose functions are enriched with attributes to increase safety, environmental awareness, effectiveness, comfort level and prestige, so that they can play a key role in creating optimal mobility, are now being invented, planned and manufactured for general use. Throughout the full spectrum of transport, vehicles will soon exempt people from the routine of driving. If people do not need to drive their cars, will their driving skills deteriorate or will they entirely fail to develop this skill later on? Is this threatening us in the near future? What are the latest research results and regulations on autonomous vehicles? What are the actual advantages of vehicle automation? We are trying to find the answers to these questions in our article, while analysing and systematizing information from the national and international literature on the development of intelligent vehicles by examining the interaction between various ground transport vehicles, and the related developments on the subject. Our goal is to create automatic intelligent vehicle systems, within the concept of intelligent infrastructures and smart cities. The paper provides an FMEA analysis of intelligent vehicles. To decrease the explored deficiencies in the present system, applicable proposals are formulated about development areas, such as forming a communication between vehicular traffic and railed vehicles. We feel that such developments are important steps in increasing traffic safety, and we regard them as elements of intelligent transport.