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ISSD – Smart Traffic Solutions



Vehicle Swept Path Analysis & Turn Simulation

AutoTURN® is used to confidently analyze road and site design projects including intersections, roundabouts, bus terminals, loading bays, parking lots or any on/off-street assignments involving vehicle access checks, clearances, vehicle tracking and swept path maneuvers.

As the vehicle swept path analysis software of choice for transportation engineers, planners, drafters, and architects, AutoTURN is used everyday. In fact, almost every state DOT in the US and provincial MOT in Canada use AutoTURN making it the defacto standard software of its kind for government agencies.

Perform Reliable Reverse Manoeuvres

Creating reverse paths for heavy goods vehicles is a task commonly carried out for logistics or retail planning, but it can surely be challenging. AutoTURN allows multiple methods to lay out reverse simulations, offering one for a quick and easy solution or another with full control.

Vehicle Path Control

Designers can make adjustments to a vehicle’s path through manipulation of points along the travel way, allowing for fine-tuning of vehicle position. Sections of the turning simulation can be added or adjusted for increased flexibility. These different editing functions can be used to adjust Arc, Corner and Oversteer path.

Smartpath Tools

Innovative SmartPath tools allow the generation of continuous vehicle paths with three interactive drive modes (Arc Path, Corner Path, Oversteer Corner) that incorporate speed, superelevation, lateral friction, and turn radius algorithms for realistic results.

Conflict Analysis

Perform vehicle conflict analysis and receive real-time visual feedback on any simulation path obstructions. AutoTURN is able to report conflicts against drawing objects on selected layers (multiple layers are supported at the same time). The conflicts are reported in a dynamic way, giving instant feedback while editing or regenerating the path.

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AutoTURN® Solutions


The leading vehicle swept path analysis and turning simulation CAD software. Available in Pro and Standard versions.


The premier online solution for performing vehicle turning simulations from any PC or Mac workstation.


The vehicle swept path solution for architects developed especially for Autodesk® Revit® users.


Generate 3D light rail vehicle swept path envelopes along virtual rail tracks based on the specifications of the rail vehicle.


Add to the value of AutoTURN with specialized vehicles for the construction, emergency, freight, and military sectors.