It is very easy to define the initial road layout, which can later be refined by using the program’s advanced road planning functions. Tessera features a complete set of transition curves which can be freely combined to produce the actual corridor layout. The roadway surface is constantly recalculated and visible during the design stage. The corridor sidelines are calculated by taking into account the initial road width as well as any widenings that the user has placed along the road.

During the next stage, the program produces the terrain profile along the corridor as well as at the cross sections. The long section can be modified by using the mouse, while the program displays helpful information such as slopes and height differences to the user as well as any specific geometric properties of the road at the current working position.

By taking advantage of the rich library of typical cross section templates included in the program, the user can quickly and accurately model the required cross sections. Even if an exact match is not found, the user can either modify an existing typical cross section or visually construct a new one from scratch. In either case, the new cross section is added back to the library. After applying the selected typical cross section template, the resulting cross sections can be freely edited and the program will recalculate all affected quantities.

Finally, Tessera can print and export all generated designs and tables. The printing process is highly configurable, satisfying even the most sophisticated presentation needs.

Horizontal Alignment:
– Visual construction of the corridor as well as import from a text file.
– Complete set of transition curves (Clothoid, Cubic Parabola etc) for bends of every type (hairpin, two PI conjunction, etc).
– Bidirectionally connected Horizontal and Vertical alignment and visual drainage inspection.
– Parametric calculation and graphical visualization, as well as manual editing of the superelevation rate diagram.
– Service road cross section synchronization based on main road axis.
– Corridor sidelines, auxiliary axes, traffic islands, in addition to a multitude of standard road lines.
– Visibility analysis. – Bruckner diagram Terrain
calculation : – Import from text or DXF files. – Exhaustive terrain consistency and validity analysis and repair. – Automatic generation of calculation boundaries. – Very fast constrained Delaunay triangulation and contour calculation algorithms. – Local modifications with on-the-fly geometry validation and updates. – Relief shading; elevation and slope based coloring. – Multiple concurrent TINs, volume calculations. Cross sections:

– Visual typical cross section editing, or selection from an extensive built-in library.
– Two branch typical section.
– Composite cross section creation via multiple road cross section merging.
– Corridor rehabilitation.
– Batch cross section calculation, manual editing where necessary.
– Automatic cross section side space expansion based on calculated visibility curves.
– Fully parametric mass tables.

3D:
– The 3D environment is a native part of the Tessera CAD platform. It can be quickly and easily employed at any stage of the design.
– 3D inspection as well as editing capabilities similar to Horizontal Alignment
– Facilitates local terrain modifications through the use of 3D editing functions such as triangle edge swapping, breakline insertion, etc
– Visual as well as automatic verification of the visibility calculations.
– CAD and photorealistic rendering modes.
– Export to arbitrary bitmap resolution suitable for presentation quality printouts.
– Creation of video files which can be transferred and played by any

CAD media player – Environment:
– Very fast graphical environment.
– Drawing tools: polylines, circles, ellipses, clothoids, TrueType text, bitmaps.
– Drawing capabilities: 24bit color, line types, hatches, layers, copy/paste, rotation, scaling, snap on any object or on the grid, etc.
– Unlimited undo/redo levels.
– Import/export of data from DXF, ASCII and Excel files.
– Export road design data to LandXML files.
– Advanced built-in printing capabilities.