Yes, it is called pathing blockers. You will find that among your Doodads there is a category called "Pathing Blockers" and to view whan arias these pathing blockers affect hit "N" - This will show everything in a light brown color and the path that is blocked in a dark brown color, or you can hit "P" which will show you the paths, this tool might be better to use, as it doesnt cover all the tiles with one color, rather shows the blocked pathes a pink color, and other things, like water, with a blue color.