NEXUS DDI

PLAN, DESIGN, AND EVALUATE DIVERGING DIAMOND INTERCHANGE GEOMETRIES

A well-designed Diverging Diamond Interchange has the potential to improve safety and reduce traffic delays more effectively and at a lower cost than a traditional interchange. DDI designers, however, are faced with the challenge of balancing competing factors, such as the footprint, geometry, safety, design vehicle accommodation and cost. This has traditionally been a manual, time-consuming and often tedious process.

NEXUS DDI is a CAD-based tool that enables designers to quickly generate DDI geometries based on site-specific constraints, design guidelines, lane configuration, design speed and vehicles. With dynamic editing capabilities, the software provides real-time feedback of geometric parameters. Valuable design and drafting time will be saved by reducing the need for manual design methods and calculations during the DDI project’s proposal, conceptual and preliminary design stage.

With NEXUS DDI’s intuitive geometric design workflow, even less experienced designers will become confident while gaining the vital knowledge required to take on complex DDI design projects.

NEXUS DDI Overview Video
Watch this video to learn how using NEXUS DDI can help you to create DDI geometry in less time, with fewer errors and in accordance with the design guidelines.
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NEXUS DDI Features

EVALUATE MOVEMENTS
Visualize the effect of the design vehicle movements on the DDI geometry. The software uses the proprietary AutoTURN vehicle movement algorithm.
EYEBROW AND MEDIAN CHECK
Check eyebrow and median geometries to ensure that their location and shape discourage wrong-way vehicle movements. The eyebrow and median geometries should make straight vehicle path between approaches difficult.
EDIT CROSSOVERS
Change the design element values in the guidelines or directly use grip points to quickly edit crossover angles and, locations or rotate the crossovers entirely. You can also update crossover geometry by modifying the tangent lengths. All changes will adjust the DDI geometry automatically.
LANE CONFIGURATION AND ASSIGNMENTS
The number of lanes and the lane assignments, which are typically generated through traffic operational analysis, can be graphically defined and adjusted. Easily define merging and diverging lanes.

What Our Clients are Saying

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Platform Compatibility

Platform Requirements
Minimum AutoTURN Pro 10.2 (sold separately) installed on the same workstation
Autodesk® AutoCAD® 2015 – 2019 (except AutoCAD LT)
Autodesk® Civil 3D® 2015 – 2019
 Bentley® MicroStation® V8i, CONNECT®
System Requirements
Full support for 32 and 64-bit operating systems
Workstation: Windows® 7, Windows® 8/8.1, Windows® 10
Network: Windows® Server 2008, 2012, 2016
Languages Available 
English