Utah State University Extension
This fact sheet describes a pilot project undertaken in Logan, Utah, where large, mature trees were allowed to stay in place, while buckled sidewalks were replaced with a modular paving system called Terrewalks.
Dettenmaaier, Megan and Kuhns, Michael R., "Tree/Sidewalk Conflicts: One Way to Save Trees" (2016). All Current Publications. Paper 807.