Using IndorCAD/Road software to calculate the amount of road pavement materials needed to repair a motor road

Introduction. The authors have applied the IndorCAD/Road computer-aided design system to study several earthwork calculation methods widely used to analyze the amount of road pavement materials needed to repair and build motor roads. The authors have also reviewed research studies focused on identifying the reasons that influence the unreliable ultimate amount of road pavement materials. The purpose of the study is to analyze all methods used to calculate the amounts of road pavement materials and their potential combinations used to repair a motor road section. Materials and methods. The authors have chosen the optimal method for calculating the amount of road pavement materials for a section of a motor road that is three kilometers long. The method has been chosen from among several methods and their combinations, offered by the IndorCAD/Road system. The authors compared these methods with the method of identifying the amount of road pavement materials depending on a difference in pavement surface levels, which is applicable after the completion of repair work. The amount of materials, calculated using this method, is considered to be trustworthy. Results. The optimal calculation method is chosen with account taken of deviations from the trustworthy amount of roadbuilding materials and their costs, obtained using the above-considered methods. The comparative analysis has proven that of all the methods available today the classical method is recommended for practical use if it takes into account the adjustment for the radius of curvature in plan, since the values of amounts are as close as possible to realistic ones at the design stage.