Turn Simulator - drive the vehicle

[lbh07]

Hi,
I have found your vehicle turning simulation very helpful.  I do have one question about reversing- is it possible?  I am using a semi-trailer and need to do a 3-point turn but can't seem to find any option to reverse the truck and show my swept path.  I understand there is a vehicle path direction to reverse, but that's not for this case.

Any help will be appreciated.
Thanking you in advance.

[Lars]

Hi!
There’s’ no option for reversing a vehicle. Theoretically its’ the same path as you would go at forward direction, so if you can drive in one direction along a path you should also manage to reverse along the path.

Draw a path for reverse maneuvers and reverse it and generate envelope.


/Lars

[eea123]

I'm pretty sure the backup envelope of the semi-trailer tracks differently than the forward one.  There was a University study done, I think out of Canada, in the mid-90s that developed templates that the commercial program AutoTurn adopted in version 3.0.  I could review a few enevelopes and email them to you Lars if you'd like?  Hopefully I can find a copy of the study posted online, nchrp_rpt_505.pdf is a good reference but looks to be forward movements only.

[eea123]

I haven't had a chance to prepare the backup envelopes, but after a suggestion by Lars in a related post, you might try PathFinder's free 30 day demo?

http://www.simtra.com/software-products/pathplanner-roads/features/

It shows to do backup envelopes like AutoTurn.

[Aussie]

Australian Standard AS 2890.2 has reversing templates for medium rigid vehicle, heavy rigid vehicle and articulated vehicle plus a description on how to use them. Very handy for designing loading bays.