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AutoTURN Pro


With AutoTURN and AutoTURN Pro, the most advanced and comprehensive swept path software available, you can easily check your site and road designs to ensure all types of vehicles can move through safely and efficiently. From bicycles to cars, to buses and trucks, to heavy haul industrial transport—you can quickly test multiple maneuvers and be assured your results are accurate and extensive. Our patented technology allows you to automate processes, saving you time and increasing productivity. Enhanced review, presentation and reporting features help you get projects approved and expand the value of your work.


Whether you design in 2D or 3D, are an engineer, architect, developer, or planner, AutoTURN has got you covered. Use the vast catalogue of vehicles—or customize your own—to check:

  • Turning simulations and swept paths
  • Speeds and turning characteristics
  • Sight lines
  • Lateral, ground and overhead clearances


Take the complicated calculations out of the equation

AutoTURN does the math for you. Eliminate the challenges of calculating curves and modeling vehicles with different steering capabilities. Using a vehicle of your choice, AutoTURN will compute the space requirements and show you the results, so you can focus on the important safety and operational components of your design.

Boost productivity and explore the best design options

Save time and make better decisions. Quickly create simulations and check multiple maneuvers for all vehicles accessing the site. Smart tools and automated processes help increase productivity and reduce human errors. Great for discovering the best design option or modeling more complex scenarios such as traffic calming and site circulation analysis.

Tackle complex urban design and complete streets projects

Embrace the future of urban design. With AutoTURN Pro, you can simulate the movement and turning requirements of a variety of bicycle types to validate your design is safe for cyclists, pedestrians and motorists alike.

Test your design with a vast array of vehicles

AutoTURN Pro includes over 1300 vehicles in its manufacturer-specific and standard design vehicle libraries, so you can run a robust swept path analysis. Quickly search by library name and apply filters to define results. You can also set custom vehicle groups that match your country or local area design

Visualize the impact in 3D

Run 3D simulations to check for potential conflicts with terrain and infrastructure or for presentation purposes. With AutoTURN Pro you can also easily illustrate, vehicle paths maneuvering forward and backward.

Review your results with quality diagnostic tools

The automated tools ensure your design aligns with the guidelines and safety requirements of local transportation agencies. You can also readily check any manually produced simulations to ensure key parameters meet design criteria. Produce detailed reports so that reviews can be done by peers or others—meaning you can get a quicker stamp of approval on your design.

AutoTURN Pro features

Define Individual Wheel Axles on all Vehicles
Accurately model and visualize every wheel configuration per axle of the vehicle.
Report conflicts with geometry in multiple layers or levels
Save time by simply selecting the layers/levels you want to report on and AutoTURN will highlight any potential conflicts between the simulation and elements in these layers/levels.
Simulate Bicycle Movements
Use a library of different cycle types (e.g. bikes with trailers, recumbent cycles, scooters) to simulate their movements and ensure on-street and off-street design projects safely accommodate the turning space required.
Analyze Clearances in 3D
Highlight potential conflicts between vehicles and terrain or overhead obstructions. Use AutoTURN’s patented 3D technology to instantly see a 3D swept path envelope, which models the vehicle’s underside and roofline, while considering the yaw, pitch and roll limits as the vehicle interacts with the terrain. Detect conflicts that might not be apparent with assessing clearance on a vertical profile.
Automate Simulations
Save time and reduce guesswork. Solve possible drive paths based on available space. The patented Intellipath tool automatically generates and evaluates the swept path of a vehicle for a route. You can also quickly test other vehicles on the same path and calculate the maximum speeds to make specific turns.

What Our Clients are Saying

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Platform Compatibility

Platform Requirements
CAD Platform Compatibility (Only 64 bit, except Bentley V8i series):
Autodesk® AutoCAD® 2017 – 2023 (except AutoCAD LT)
Autodesk® Civil 3D® 2017 – 2023 alignments
Bentley® MicroStation® V8i (SS4 and up), CONNECT® (Update 12 and up)
Bentley® MicroStation® PowerDraft V8i, CONNECT® (Update 12 and up)
Bentley® PowerCivil V8i
Bentley® Power GEOPAK V8i
Bentley® Power InRoads V8i
Bentley® AECOsim Building Designer V8i, CONNECT
Bentley® OpenBuildings Designer CONNECT
Bentley® OpenRoads Designer CONNECT
Bentley® OpenCities Map CONNECT
Bentley® OpenSite Designer CONNECT
Bricsys® BricsCAD® Pro V21 – V22
ZWSOFT® ZWCAD® Pro 2021 – 2022
System Requirements
Full support for 64-bit operating systems
Workstation: Windows® 7, 8, 8.1, 10, 11
Network: Windows® Server 2008 R2, 2012, 2016, 2019, 2022
Languages Available 
English, French, Spanish, German, Italian, Czech, Chinese