Audio tactile line marking (profiled line marking) can be applied as:
◻ white on the white line,
◻ white adjacent to the white line,
◼ black adjacent to the line or
◼ black with dashed lines painted over the top.
This low-cost treatment can reduce the likelihood of crashes by up to 25% (source: iRAP).

Do profiled line markings destablise motorcyclists? The answer is no – check out our video here: ???? Video

Image source: Coastline Marking, Safe System Solutions Pty Ltd