Our robot mowers can handle bridge, driveway, and sidewalk crossings without an issue.
The robots can handle bumpy terrain and lips up to about 2-inches. If higher than that, we choose a narrow area and level the ground in that area slightly to allow the robot across. Rocky areas are typically fine as well. The robot will bounce off of larger boulders and drive across bumpy rocks in most cases. We always test these areas during installation.