The latest release (currently 11.0.6) is available for Linux, Windows and macOS. Each download bundles the local spatial server and web app; after installing, launch Magnus from the application drawer, Start menu or Applications folder, and it opens in your browser.
Download for Linux (.deb) Download for Windows (.exe) Download for macOS (.dmg)
The Windows and macOS installers are not code-signed yet. On Windows, choose More info → Run anyway if SmartScreen warns. On macOS, drag Magnus to Applications, then right-click it and choose Open the first time.
Virginia DOT Safety Service Patrol crews manage crashes, debris and disabled vehicles on live interstates, where the difference between a correct and an incorrect setup is measured in truck positions and cone tapers. Magnus is for teaching and studying those setups. It draws the actual stretch of highway — by route and mile marker or exit number — and lets an instructor or trainee build the scene on top of it.
What it does
- To-scale roadway templates from a map pull: by route and exit or mile marker, Magnus traces the interstate from OpenStreetMap into smoothed, lane-width pavement with yellow and white edge lines. This is a scaled underlay to draw on, not a finished diagram — OpenStreetMap carries centerlines and lane counts, not lane-level geometry, so gores, tapers and lane lines are added by hand.
- A generic highway generator for simpler templates: choose lane count, travel direction, auxiliary lane and ramp configuration and get a clean roadway without a map pull, plus built-in scale-reference templates.
- A Location Template Creator for finishing either kind of template: MUTCD-pattern line presets (10 ft skips on a 40 ft cycle, dotted auxiliary-lane lines, edge lines), pavement and gore shapes, point-level editing of markings, zoom to 1000%, and SVG export.
- Drag-and-drop scene construction: SSP trucks, arrow boards, cones and tapers, responders, hazards and annotations, in feet.
- Compliance modes that audit a scene against SSP standard operating procedure, flag violations, and distinguish an SOP setup from an extended-safety one.
- Online, LAN and offline connectivity modes, so a training room does not depend on live map service.
- Scenes save and reload, so an exercise can be set up in advance and revisited.
Where it stands
The scene builder — trucks, cones, audits and scene persistence — has been in use through several major versions and is what the stable release delivers. The roadway underneath it is now a corridor-smoothed OpenStreetMap trace or a generated highway, finished by hand in the template editor; Magnus does not produce navigation-grade or survey-accurate pavement. Version 11 adds the Conversation Flow tool: a full-screen view that lays the SSP ↔ Transportation Operations Center radio exchange out as a timeline of calls — opening hail, dispatch or arrival report with the blocked lanes read from where the hazards sit, acknowledgements, agency arrivals and departures, and the clearing call — prefilled from the scene, recordable as assets are added and removed, editable call by call, and saved with the scene for the lesson.
Who it is for
SSP training staff and trainees first; incident-management instructors and anyone teaching temporary traffic control on high-speed roadways more generally. Magnus is a study and instruction tool, not a dispatch or field application.
Support
Questions and early-access enquiries: gregorydearth@gmail.com.