Sustainable transport, as one of the areas on which sustainable development should be founded, depends more and more on introduction of electric vehicles in daily traffic. This paper describes part of the results of wider research related to the analysis of all sustainable transport indicators. Since introduction of electric vehicles is supposed to be done stage by stage in the actual transport, deep understanding of its main parameters/indicators is a prerequisite for reliable analysis. The paper identifies traffic and vehicle structure parameters and rang them in hierarchic order. This structure can serve as substructure in more complex structure of all transport parameters in wider researches.