hello,
I want to know if there is a description in english for the Road Pac made by Xanadu and where I can find this description
thanks

First of all, RoadPAC is made by the Pragoprojekt company. Xanadu is only a reseller of the software.
 
Here is a brief description of the software package:
 

RoadPAC 2008 is program package for complex design of roads and motorways. Program package allows to calculate all necessary data for complex design of road including balance of mass-haul in a short time. RoadPAC also creates necessary graphic drawings as layout of centre line and its offset curves, longitudinal profile, cross sections, complete layout and perspective views and mass-haul diagrams The drawings can be displayed directly on display or exported into HP-GL or DXF files before final processing in AutoCAD environment.
Besides basic programs in the list, RoadPAC also includes other service functions that help to improve productivity of work and save time and expenses.
Among the most important features of ROADPAC belong e.g.
* easy use of functions of the package (program RDPX)
* dialog editing of input data (program RDPX)
* quick creation of various alternative solutions
* interactive graphic control of designed road on display
* independent graphic environment (RoadPAC - PLOTFILE)
* connection to digital terrain model (DTM) which is now linked to the system
* interactive cooperation with AutoCAD graphic software and DXF import and export of drawings
* the package is now ready for adding user prepared modules using common interface.
List of programs in package ROADPAC 2008
1. Group: Calculation of Horizontal Alignment
RP12 Horizontal Alignment
VIAAXI+ Interactive horizontal alignment in AutoCAD environment.
RP14 Interchange Ramps
RP15 Intersection of Roads
RP16 Relation of two Roads.
RP61 Road Setting Out
RP77 Boundary of Land Acquisition
2. Group: Terrain data and Geology.
DTM Digital Terrain Model
RP27 Terrain Cross Sections
RPPP Existing profile of Terrain
RP28 Completion of Geology
RP29 Stripping of Topsoil INTRODUCTION ROADPAC´04 User Guide 5
3. Group: Vertical Alignment
RP31 Vertical Alignment
VIANIV Interactive Vertical Alignment
4. Group: Cross Arrangement
RP41 Automatic grading details according to ČSN
RP44 Automatic grading details according to ČSN(2004)
RP42 Grading details of Junctions
RP43 Grading details, widening, superelevation
RP45 Detailed points elevation
RP46 Detailed points coordinates
5. Group: Cross Sections
RP51 Cross Sections Construction
RP71 Earthworks Calculation
RP72 Volumes of Construction Layers
RP80 Pavement Reconstruction
6. Group: Drawings
RP34 Drawing of Longitudinal profile
RP53 Drawing of Cross Sections
RP76 Drawing of Mass-haul Diagram
RP83 Drawing of Perspective Views, Sight Distance

Thanks for the description
..... but the software is not in english? On this page (http://www.roadpac.cz) I see only Czech language.
I want to try RoadPac and I want a trial version if is in english .... maybe you can give me something ... thanks

The software is completely translated to English language. Unfortunatelly there is no trial version, but I could  show  it in your company, if you are located in Czech Republic. I would recommend it as one of the best road designing package on othe market.Martin Folber

Hello MartinI'm from Romania and I want a buy a software for roads and briges design projects because these is my degree. Where I'm now I work with Civil 3D, LDT and ARD in Civil 3d platform but I want to make my own company and I need a good software and cheep :))Thanks for your interest

[QUOTE=martinfolber]I would recommend it as one of the best road designing package on othe market.[/QUOTE]
That's true, RoadPAC is great tool for 2D drafting and it's nice way use it as support software for Autodesk Civil 3D.