Note: This functionality is only available in AutoTURN Pro.

Places a 3D turn simulation using a 3D capable current vehicle on a selected path on a terrain (see Overview -> Current Terrain). The 3D turn simulation will be placed using a 3D representation of the current vehicle, settings, and properties, on the terrain.

Note:

• This tool requires that the current vehicle is a 3D capable vehicle.
• The vehicle must not contain any of the following parts:
  • Telescoping trailers
  • Trailers with no axles (bar)
  • Trailers with bogies
  • Trailers with cargo

• MicroStation users: MicroStation terrain elements are only supported in MicroStation V8i SS3.
• This tool requires a surface or mesh object in the drawing to act as the terrain.
• This tool requires existing CAD geometry in the drawing to act as the path elements. The geometry may consist of lines and arcs, a polyline/complex chain, or an alignment. Lines and arcs can not be combined with polylines/complex chains or alignments to make up the path elements.
  • If the pre-drawn path elements consist of lines/arcs, select the path elements in the desired direction of travel, and then click a blank spot in the drawing.
  • If the pre-drawn path elements consist of a polyline/complex chain or an alignment, select the path element nearer to the start than the end.
• A circle indicates the start point and an arrow symbol at the end represents the direction of travel.

Grip Editing

Grip editing (via AutoCAD/MicroStation commands) can be performed on paths consisting of polylines/complex chains. When the path element changes, the turn simulation will update to reflect the changes in geometry.

Steering and Articulating Angles

If the vehicle’s steering lock angle, articulating angle (yaw), pitch angle, or roll angle is exceeded at any point along the path, the simulation will terminate at the point where the angle was exceeded. The exceeded angle and it's maximum value will also be displayed as in the following illustration:

Example of a placed 3D simulation where the steering lock angle was exceeded

In the event that an angle is exceeded during the course of a simulation, delete the simulation, increase the radius of the arc where the simulation stopped (or otherwise alter the path), and then pick the path and place the simulation again. It is suggested that turn radii be of at least the minimum centerline turning radius for the vehicle.

Note: Only forward maneuvers can be created using this tool. For reverse maneuvers, see Reverse Maneuvers.