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.