Abstract: When initiating the study and design of a new path for a given road, achieving technical norms and specifications to ensure the safe and smooth movement is not something complicated. This is due to the fact that the freedom to choose the path allows the engineer to achieve all specifications in terms of radiuses and vision distances according to the desired design speed. The real challenge remaining is to improve motion conditions at the existing road curves. This is actually invested in order to meet (or get close as much as possible) technical norms compatible with the design speed on the road. The importance of GIS lies in the ability in dealing with the road axis points within a three-dimensional environment where the path of the road can be modified (by deleting some points from the path or adding new points). This can be done in such a way that the new path meets the required norms introduced by the engineer.