Who? Road and Junction Designers

What? Design and plan the operation of safe road junctions

Why? Saves you 65% of the design costs involved in manual processes or other CAD programs

Keysoft Traffic


NEXUS® is the ultimate intersection design solution for new construction and rehabilitation projects offering vehicle operations, geometric design, and safety performances together in one comprehensive package. With 65% savings in overall design costs, NEXUS allows for the creation and evaluation of intersection concepts in a fraction of the time compared to traditional or manual computer-aided drafting and designing.

Using the Vehicle Envelope Method® (U.S. Patent No. 8,650,004) of design, NEXUS incorporates all the key elements in the intersection design process including design vehicles, capacity conditions, sight lines, conflict points, and conceptual grading – providing instant feedback so engineers can quickly and easily produce highly effective and safety oriented intersection layouts.

What People are Saying

Huge time savings in developing initial design options. I like the fact that vehicle paths are tied to intersection geometry

George Koumoutsidis, Stantec INC

NEXUS Highlights

  • Dynamically generate junctions using any or a combination of 4 different methods
  • The patent pending Vehicle Envelope Method generates junction geometry
  • Ability to draw: Conflict Points; Tally of Crossing Points; Merge Points; Diverge Points; and Total Points.


  • Junction Geometry Generation. Ability to define bay taper ratio and auxiliary taper type, draw roundabouts, and add bicycle lanes
  • With Sight Lines Checking you can toggle the display on or off for a selected junction design. Generate sight triangles for turns with user-defined stopping sight distances
  • Ability to create a 3D grading model of a junction. Draw basic contour lines based on the contour intervals for evaluating drainage patterns.

NEXUS In Detail

Enquiry form

Your free subscription of Keysoft Solutions software can be downloaded by filling in your details on the form below. A link will then be emailed to you for you to download the product. When you have saved the downloaded file double click it to install the software.

The free subscription is a full version of the product and is valid for 15 days.

If as a result of this subscription you would like to purchase a copy of the product please call 03451 303040 and ask for sales or email sales@keysoftsolutions.com to receive a quote.

Platform Compatibility


NEXUS - Technical Specifications

Product Name




Release Date

Friday, November 30, 2012

Technical Specification

Intel® Pentium® 4 processor or AMD Athlon®, 2.2 GHz or greater
Intel or AMD Dual Core processor, 1.6 GHz or greater
32 Bit Microsoft® Windows 7, Vista, XP SP2/3 operating systems
150 MB free disk space for installation
1024x768 VGA with true colour
Microsoft® Internet Explorer® 6.0 (SP1 or higher)

CD-ROM drive

Other Details