One of the most important data the designer must know to study vehicle maneuvers in sharp curves is the space that vehicle needs while traversing along the turning path. Key feature to specify the required space is the paths the rear wheels follow during the turning maneuver. The definitions of these tracks are necessary at design time in order to define pavement widenings on curves with a high degree of curvature.

Diolkos has the ability to compute swept paths for variety type of vehicles. The program draws the boundary area that vehicle shares during the maneuver, as well as the envelop curves for the front and rear wheels.

Although the program calculates swept paths based on German RAS-K-1 standards, the user can define various vehicles with different proportions by modifying the default values.

The program extracts the above swept paths drawings to AutoCAD  via ActiveX automation or to an external DXF file. These drawings can help the designer to study a great number of projects including parking facilities, barns, worksites, factories etc.