Bentley GEOPAK Civil Engineering Suite
Proven Technology for Designing and staining Transportation Infrastructure

Bentley’s GEOPAK Civil Engineering Suite gives engineers the flexibility to work the way they want with the power they need to complete their infrastructure projects. It provides complete drafting capabilities, powerful mapping tools, and design automation for civil transportation professionals. GEOPAK features constraint-driven, 3D parametric modeling with an innovative approach todesigning civil components in a total-project context.

Civil Information Modeling

Today’s engineers and designers face a paradigm shift. No longer are documents just for the current project or construction. An engineer must provide information and designs that can carry beyond construction into operations, maintenance, and rehabilitation – and back to design if necessary. GEOPAK uniquely supports this evolution of civil engineering information, encompassing the entire civil project lifecycle. The information-rich modeling of GEOPAK integrates with CAD,mapping, GIS, and even business tools like 3D PDFs, offering awesome power that makes the most of the engineer’s acquired knowledge while supporting traditional, proven methodologies.

Design Sophistication

GEOPAK is used for roads and highways, railways, and public works projects as well as commercial, industrial, and environmental land development. The software provides a greater level of design sophistication than standard tools through the application of design rules. Users are able to work in multiple views and dimensions. For roads and highways, Bentley’s unique Roadway Designer provides an all-in-one visual tool for 3D parametric design of the complete roadcorridor. This and other fully developed capabilities produce impressive improvements in the areas of design productivity and project accuracy.

Project Versatility

Extremely versatile, GEOPAK is used for all types and phases of civil projects, large and small, by users of every level of expertise. The software integrates all aspects of the civil project, from corridor studies to final design and production of construction deliverables. It handles a wide variety of complex tasks such as interchange design, roundabout design, survey data reduction, site development, sanitary and storm water network design, and production of construction staking reports.

Flexible and Configurable

GEOPAK and MicroStation® deliver all the drafting and drawing production capabilities needed to complete your project. And the strengths of GEOPAK are enhanced by Civil Accu-Draw, the civil-specific version of MicroStation AccuDraw® – an intuitive, precision drafting tool that anticipates the user’s intent, reducing the number of mouse clicks and other actions required to achieve drafting tasks. Civil AccuDraw streamlines the drafting process by supporting civil-specific draftingconventions with options for station and offsets, bearings and distances, azimuths, and more. GEOPAK automates clash detection. Because workflows can vary widely depending on the scope of the project, GEOPAK offers users the flexibility to work in ways that best suit their specific needs. The software is fully configurable, enabling users to customize the GEOPAK environment to meet project standards or personal preferences. Roadway libraries streamline repetitive tasks across projects and promote rapid evaluation of design alternatives for critical decision making. GEOPAK automates the production of a complete array of design deliverables. Embedded project management capabilities help users stay on top of all project components and deliverables capabilities that are tightly integrated with Bentley’s ProjectWise® project collaboration system for connecting people and information across project teams.

Working With Field Data

A complete civil engineering solution, GEOPAK offers a full complement of functionality that enables users to work automatically with survey, GPS, LiDAR, Point Cloud, and other forms of field data. The software supports the leading devices and formats, handling a broad array of existing topography information. Adjustments are calculated using any of the industry-standard methods. Users can modify and process the data as needed and when the design is complete, upload design data to data collectors for stakeout or automated machine guidance for site preparation.

Integrated Mapping

GEOPAK contains a comprehensive set of mapping and GIS data compilation and editing tools. These tools allow the engineer to combine engineering and GIS data for better decision processing in preliminary design, account for sensitive issues like wetland mitigation, and even publish maps for public approvals. The design process expands to enforce business and topological rules and adhere to administrative restrictions. By combining engineering and mapping tools, Bentley brings CAD and engineering design accuracy, ease-of-use, and efficiency to GIS. Overall, users make better-informed decisions through analysis, visualization, and presentation and better communicate through stunning maps and intelligent PDFs.

Surface Modeling

GEOPAK enables users to create 3D surfaces. The software uses triangulated surfaces to represent terrain – for both existing ground and proposed design. Digital terrain modeling (DTM) lets users incorporate features such as roadway centerlines, pavement edges, or ditches in the surface model. These can be random features for non-uniformly occurring points or breaklines that represent features connected in linear segments – as in the case of ridges, edges ofpavement, and curbs. Interior voids (hulls) or holes represent building footprints, lakes, and so on. Exterior-boundary features can be placed around surface areas to maintain cut-and-fill lines in proposed designs.

Flexible Geometry Creation

The full complement of coordinate geometry (COGO) and advanced alignment design capabilities of GEOPAK enable fast creation of precision horizontal and vertical alignments as the three-dimensional roadway is developed. Elevation profiles display surface information as well as vertical alignments associated with horizontal alignments. A combined, true 3D alignment constructed from the horizontal and vertical definitions can be displayed in the plan view. The softwaresupports unrestricted viewing with unlimited geometry editing and manipulation either graphically or with precision key-in.

In-Context Road Design

GEOPAK offers in-context, smart design of 3D road corridors w ith Roadway Designer. This tool streamlines the complex development of every aspect of the roadway in a single, parametric presentation. Users can move rapidly along a corridor at controlled intervals, viewing and dynamically designing all roadway components in concert. The software automatically computes dynamic volumes to balance cut and fill. Users can design interactively in plan, profile, cross section, and superelevation using Roadway Designer. Roadway Designer displays four-port views of the design – plan, profile, cross ection, and superelevation. Users see immediate visual feedback in all views as the work progresses. The roadway is easily modified by direct manipulation of parametric graphical components or by precision input in context-sensitive dialog boxes. Roadway Designer’s unique capabilities enable users to target known existing features. This allows the model to conform to on-ground demands. Color coding shows potential problem areas as the design develops. Users can test design decisions in Roadway Designer before applying them. Roadway Designer offers state-of-the-art design automation. From horizontal alignment, vertical alignment, and surface information, the software generates 3D models of the full corridor using predefined typical sections. The software automatically ensures conformance to standards as it speeds the corridor development process. When widening roads, Roadway Designer automatically creates transitions in numbers and widths of lanes in accordance with user design criteria. Users can interactively edit superelevation on the fly. End conditions can be computed at any point in the process. Users can easily modify and create design-intelligent components – without programming – and apply design constraints that offer sleek control of the 3D parametric modeling process. Components can be open or closed shapes and include curb and gutter sections, sidewalks, asphalt layers, aggregate layers, medians, barriers, slopes, and ditches. Roadway Designer automatically creates surfaces for use in creating cross sections, performing volume calculations, and aiding visualization and rendering. Users can also merge components to create a single design surface or create a model of the entire corridor.

GEOPAK includes powerful tools for commercial industrial land development as well as environmental remediation.

Roadway Designer’s interactive, 3D modeling capabilities combineparametric, constraint-driven tools with engineering theorem, keeping engineers in total control over all software decisions.

Visual Design Verification

Design verification has never been easier. GEOPAK allows users to virtually drive through the 3D corridor model and visually inspect it for any design eficiencies or physical conflicts. In 3D QA, engineers can fully view road features from all angles to identify gaps or misalignments, look for utility conflicts, and check clearances. They can also visually evaluate sight distance, pavement marking, and signing as well as try out multiple aesthetic treatments to reach the desired result. Using GEOPAK with MicroStation’s rendering features – for example, color fill, shading, lighting, and backgrounds – improves the design at any phase and adds a level of assurance in project constructability.

Comprehensive Results Evaluation

GEOPAK provides flexible creation of cross sections from any baseline. Custom cross sections can be cut at skewed angles or broken-back sections, singly or in multiple groupings. The software annotates each cross section as determined by the user. A full array of civil components can be included in the cross section,including surface features, storm and sanitary structures and roadway components.

Users can choose from a variety of volume calculations that greatly enhance accuracy over traditional methods. Sophisticated end-area volume calculations let users determine the level of accuracy based on the frequency that cross sections are cut. Using this method,GEOPAK also recognizes components in the cross section and accurately computes component volumes. The software offers the flexibility to process volumes based on straight-line or curved alignments as well as surface to surface calculations. GEOPAK handles multiple surface types – existing, designed, andsubstratum – and can ignore or void surfaces for calculation.

Site Design

For site design, GEOPAK includes Bentley’s dynamic Site Modeler, enabling engineers and designers to interactively create and manipulate models relative to one another. The dynamic setting allows users to move, rotate, and edit individual models and see the impact to adjacent models or to the entire project model. Additional site design tools are tailored to the specific requirements of site engineers, offering interactive site feature modeling within the intelligent terrain model. This allows users to manage every aspect of the land development process. The software accounts for lots, parcels, boundaries, property takes,right-of- ways, and other aspects of land ownership. It automates design for a full range of site features – including ponds, drainage ditches, building pads, and cul-de-sacs. Sophisticated surface-to-surface analysis helps users accurately balance earthworks and pinpoint best case construction scenarios. Use end-area volume calculations to allow for compaction factors, removal of undesirable material, and correction for curvature.

Storm and Sanitary Network Design

A comprehensive application for surface and wastewater collection systems rounds out GEOPAK. GEOPAK provides the ability to interactively create a 3D associative model relative to the existing and design ground models as well as road and site geometry. Users can manipulate networks in plan or profile views, displaying not only the GEOPAK drainage model but also other utilities modeled in GEOPAK. This allows users to plan for clash avoidance and identifypotential problem areas before they occur. Users can model, analyze, and design complete storm water and sanitary sewer networks, replete with inlets, culverts, channels, catch basins, manholes, and pipes. A robust set of computation tools account for the full array of surface runoff conditions and perform design checks to ensure conformance with minimum and maximum requirements. Industry-standard hydraulic methods are used to analyze and design the systems. Rational, Modified Rational, and Soil Conservation Service unit hydrograph modeling and pond-routing routines calculate hydrologic impacts for pond sizing and out-flow characteristics. Users can create the full set of hydrographs, drawings, and reports.

Project Deliverables

GEOPAK provides geometric and surface data in XML industry-standard format for data exchange. Project data can be used in multiple formats, including Excel spreadsheets, HTML or text files, PDFs, printable documents, and other output. Reporting tools automate the production of a variety of standard reports, including horizontal and vertical alignments, quantity takeoffs, clearance reports, stakeout, legal descriptions, surfaces, and more. GEOPAK provides full support to createlegal descriptions. The software outputs standard formats for Trimble, TOPCON, and Leica for machine-controlled grading and machine guidance.

System Requirements


Intel Pentium-based or AMD Athlonbased PC or workstation

Operating Systems:

Microsoft Windows 7, Windows 7 x64, Windows Vista, Windows Vista x64, Windows XP Professional (SP3 or later)


1 GB minimum, 2 GB recommended, (more memory typically results in better performance)

Disk Space:

600 MB minimum free disk space

Input Device(s):

Mouse or digitizing tablet (Digitizing tablet requires vendor-supplied WINTAB driver or Bentley’s Digitizer Tablet Interface, the latter included with GEOPAK installation.)

GEOPAK Civil Engineering Suite®

Proven Technology for Designing and Sustaining Transportation Infrastructure

At-A-Glance Features and Functions

Integrated Mapping

Provides data interoperability

Browse and analyze data

Map thematically

Generate reports

Survey/Data Acquisition

Read/write standard data formats automatically for:

»» Raw survey

»» ASCII/text data

»» LandXML

»» LiDAR data: ASCII and LAS

»» USGS Digital Elevation Models

»» Photogrammetric data

Reduce survey data

Support custom feature coding

Includes Level and Least Squares adjustments

Edit survey data graphically and dynamically

Import and analyze Point Cloud data

Merge surfaces automatically

Update surface data dynamically

DTM Analysis

Generate contours

Control maximum length of triangles

Display cut and fill delineation

Color code display by triangles, slopes, elevation, and aspect

View slope vectors

Analyze line of site

View gridded and elevation models

Support boundaries, holes, breaklines, inferred breaklines, and random points

Manage large LiDAR datasets

Interactive Coordinate Geometry

Use robust, interactive geometry tools

Create, edit, move, and delete COGO points

Locate intersection: direction-direction, directiondistance, distance-distance, direction-alignment, distance-alignment, alignment-alignment, station-alignment

Fit curve

Traverse: angle, direction, curve

Angle resection

Parallel by element or station range

Display inverse

Create right-of-way

Create parcels and legal descriptions

Perform geodetic conversions

Generate geometric transformations

Create cul-de-sac

Geometric Design

Create horizontal/vertical by PI method or by elements

Create circular and parabolic vertical curves

Support complex geometry: SCSCS, SCCS, etc.

Support tangential and non-tangential curves

Edit elements associatively and dynamically

Define curves by radius, degree of curvature, and pass-through points

Edit, delete, and join elements

Support delta angles greater than 180°

Check geometry integrity tool

Annotate alignments, stations, and COGO points

Review and report geometry

Annotate dynamically and automatically

Display 3D geometry


Create roundabouts using standards library

Place roundabouts interactively and parametrically

Provides dynamic editing of attributes

Add or delete artery

Regression Analysis

Regress single or multiple elements

Regress horizontal and vertical elements

Review and edit regression points

Exclude or include points by selection criteria

Profiles and Cross Sections

Create/generate cross sections and profiles along alignments, graphics, or between points

Include drainage structures and utilities

Include vertical alignments and existing and proposed surfaces

Apply user-defined annotation of points and segments

Cut cross sections orthogonally or at skew

Create custom cross sections

Update cross sections and profiles

Generate earthwork volumes

Typical Sections and Template Libraries

Include components, end conditions, and features

Create components as roadway elements such as lanes, curbs, walls, ditches, barriers

Define parametric components graphically

Apply constraints to components

Place component points as free, partially constrained, or fully constrained

Set constraints as horizontal, vertical, sloped, projected, vectors, offsets, elevations, etc.

Constrain end conditions partially or fully

Set end conditions to trace existing surfaces such as rock

Drag-and-drop assembly of templates from components and end conditions

Perform graphical tests to verify design

Roadway Designer

Blend horizontal and vertical geometry with 3D topography and typical sections

Assign component control points to existing or designed features and geometry, controlling horizontal and/or vertical location

Assign automatic overrides

View plan, profile, and cross section interactively

Provides heads-up dynamic, interactive parametric design

Manage one or multiple corridors for designs

Transition between disparate templates

Apply superelevation through wizards, text tables, or AASHTO standards

Allows dynamic editing of superelevation

Apply exceptions for bridges, voids, and special end conditions

Assists problem resolution through intelligent color coding of transitions, super runout, etc.

Edit stations dynamically

Reflect edits automatically in quantities and volumes

Site Design

Use powerful grading tools for site design and environmental remediation

Provides dynamic contouring and triangulation

Project longitudinal slopes with automated benching and slope intercepts

Set slope along objects

Set elevations

Generate sloped surfaces

Use hydrologic analysis for trickle, flow delineation, and pond volumes


Walk through interactively or along a defined path

Drive virtual corridor

Storm Drainage and Sanitary Sewer

Layout and Design

3D modeling

»» Create 3D drainage model relative to topography and alignments

»» Place multiple drainage structures along alignments by spacing and offsets

»» Supports pipes, curved pipes, channels, culverts, manholes, catch basins, and inlets

»» Creates associative and dynamic modelbased designs

»» Build drainage networks directly from survey data

»» Apply any material and coefficient of roughness

»» Identify graphics as utilities and drape relative to DTM

»» Display all network and utility objects in sections and profiles

»» Label all attributions in any view or include in user-defined reports

Design and analysis

»» Analyze and design using industry-standard theorems such as Mannings, Colebrook-White, Bernouli, and continuity equations

»» Compute Tc from 3D model or specify

»» Analyze and design based upon HEC 22, FHWA, HDS 5, 10, 13, and Rational Method

»» Compute drainage flows using Rational Method or SCS Unit Hydrograph Method

»» Compute Tc via FAA, Kirpich, Overland Flow or LADOT methods

»» Use demand and demographic tables

»» Supports infiltration, population, peaking factors and land usage

»» Compute or specify flows

»» Generate reports for inclusion

in project notebook

»» Define custom intensity-duration frequency tables

»» Generate drainage queries and reports

Pond routing

»» Calculate pond volumes

»» Create input and output hydrographs

»» Design inlet and outlet control structures

Quantity Management

Automate quantity takeoffs for estimating

Link design to a master pay item list

Report quantities by entire project or delineate by sheets, stations, area, or phase

Report on design features and graphic elements

Generate linear, area, and volume quantities

Integrate with Trns*port

Apply funding splits and payer rules to quantities

Choose from more than 30 sample reports delivered

Modify sample reports or create custom reports

Contract Deliverables

Automated project delivery process with drafting and plan preparation tools

Extract sections, drawings, and reports directly from completed 3D model

Automate sheet generation for plans, profiles, and cross sections

Provide standard reports for bridges, superelevation, clearances, data collection, geometry, sections, DTM, legal descriptions, design, visibility, and more

Compute volumes by model to model (triangulated surface comparison), triangle by station, gridded, and end-area sectional volumes

Select end area volume options for separate materials, unsuitable materials, as-builts, and more


Export directly to Machine Guidance

Support industry standards, such as LandXML

Export alignments, surfaces and other pertinent design information to other systems via XML

Generate PDFs and 3D PDFs

Integrate with Google Earth

Integration with Bentley Content Management and Publishing Solutions

Component-level integration with Bentley® ProjectWise® for collaborative design and engineering project management

Integration with ProjectWise® InterPlot® for automated plot set generation and Web-based access to plot archives

Integration with Bentley® Navigator for design review, construction simulation, or automated clash detection