Road construction

Introduction. Definition and description of road geometry. Propulsion and braking forces of vehicles. Movement of vehicles on curves / Traction / Road surface friction. Elements of design of horizontal design / Angle diagram. Limit values of the elements of the grading study. Design speed. Operating speed. Speed limits. Safety criteria. Topographical design elements and their limit values. Road slopes and slope assemblies. Visibility for stopping and overtaking. Administrative and functional classification of roads. Cross-sectional areas. Elements of cross section design.Typical cross sections. Calculation of spacing by approximate and exact methods. Calculation of ground motion graphically and by application of linear theory. βελτιστοποίησης. Προϋπολογισμός έργου.

Successful completion of the course will enable the acquisition of the following skills and abilities: understanding the geometric form of a road and how to describe it. Understanding of the stages and contents of a road study. Knowledge of the geometric elements of a road design both at the stage of the horizontal and sectional design of a road. Understanding of the basic criteria for selecting the values of the parameters of the design elements of a road design with emphasis on the functionality and safety of the two-lane road. Understanding of the administrative and functional classification of a road and its correlation with urban and land use planning data. Ability to determine the budget of a road. Ability to carry out a basic evaluation of road accidents and to identify the causes of accidents. Ability to carry out a basic evaluation of existing roads in terms of functionality and safety.