Audio Tactile Line Markings (ATLMs) (also called profiled lines or rumble strips) can reduce the likelihood of crashes by up to 45%.
Black ATLMs have even more advantages as:
- You can create continuous ATLM on both broken and unbroken centrelines (no gaps).
- You only need one run for barrier and semi barrier lines.
- Black costs less as you don’t need to use high cost white beads
- You can offset on edge and centrelines to extend the life of the treatment because it doesn’t get hit as often. This in turn reduces noise to nearby residents.