Abstract: In a method and system for executing and managing a road construction project, the following operations are implemented in a single computer software. Input data are defined to provide guidelines for designing the road construction project. Underground layers are determined based on the input data and a plurality of road design scenarios are generated using the underground layers. An optimal road design scenario is selected out of the plurality of scenarios and drawings and specifications are produced to implement the selected optimal road design scenario. Quantities executed during the road construction project are calculated in order to monitor in real time the executed quantities and keep track of the progress in the execution of the road construction project.