We've worked with similar parabolic crown designs, and the key is creating a smooth transition between cross-slope sections so the blade doesn't roll over. Extending the first section and adding a small transition can help, especially for operators still learning lane guidance. We handled this by adjusting the model and testing with a used motor grader to achieve a consistent crown.
------------------------------
Ellen Jackson
------------------------------
Original Message:
Sent: 05-28-2021 16:42
From: Francisco Guerrero
Subject: Machine Control - Parabolic Crown?
We have started a project that will be running grade control on a dozer and motor grader. This roadway is a 6" parabolic crown with two 8' section at different cross slopes. I have the idea for lane guidance. I belief the operators are not trained on using this feature. So it maybe slow process for them to learn. I also had the idea to extend the first 8' section at the crown by 4' then leave a 1' void and start the next 8' section of the parabolic crown. This way the blade doesn't try to rollover n the next break.
Anyone felt with parabolic crown design in the grade control? How did you tackle the design?
------------------------------
Francisco Guerrero
------------------------------