The design of urban road intersections always requires many activities, in order to analyse the technical aims of the project, as well as the environmental and architectural context. The choice of the optimal solution should be the result of a complex, well organised and optimized process. Updated techniques, devices and software are available nowadays, to integrate all the involved aspects. The proposed case study concerns an urban road intersection in the territory of Orte (VT, Italy), whose best geometrical and functional design solution has been defined using various tools, which mainly allow: (1) the three-dimensional geometrical modeling of the layout and road elements; (2) visualization, also with dynamic scenes; (3) functional analysis of traffic flows (traffic micro-simulation techniques). © 2012 ASCE.