In this article the energy efficiency in urban transport is analysed the implementation of which would result in the reduction of energy consumption and of carbon dioxide and other greenhouse gas emissions and would thus ensure the urban transport system sustainability. Nowadays the relations of urban transport and IT solutions as well as the impact of urban transport on the community and environment are extensive. The integration of information flow in the decision making process related to the modern transport and urban mobility has to be brought to a higher level. The main goal is to upgrade the quality of life in the urban environment by improving intelligent transport systems, implementing new technologies and promoting the sustainable development. In the article the possibilities of urban transport improvement according to modern requirements of sustainability policy and environmental management are analysed. The aim of the paper is to point to unfavourable effects produced by the urban transport upon the sustainable development and mobility and to emphasize the significance of measures aimed at reaching sustainability and energy efficiency with particular emphasis on the implementation of new technologies and alternative fuels.