The Brisbane Memorandum report outlines the different trials of concrete safety products, specifying the differences in the products and their effectiveness at doing their job.
"A significant component of Council’s annual maintenance budget for footpaths and bikepaths is the treatment and removal of trip hazards caused by the differential movement in concrete slabs due to tree roots and unstable ground conditions.
Typical action taken for these hazards are:
Make safe’ with asphalt ramps – short term solution to make site safe until one of the options below can be undertaken
Grinding of the raised section of the trip hazard – medium term solution that can only be repeated limited number of times;
Replacement of section of path with new concrete – longer term solution, though the path will generally lift again due to tree roots.