However, its inability to retain the surface applied glass beads and dependence on vehicle wheel-overs to expose the glass beads held within the material has in some cases resulted in the product failing to provide adequate retro-reflectivity performance at night.
However, despite the exclusive use of thermoplastic in the U.K. for road markings paint remained the number one choice for around 70% of the worlds highway markings market due to its high performance in luminance and retro-reflectivity.
A steady decline in the standard of materials used and road marking services workmanship through the late 1970’s and 1980’s came about through increased competition, lack of investment in employee training and central governments emphasis to reduce local authority costs that led ultimately to manufacturer and contractor price cuts. It is believed that road marking expenditure in 2006 has not significantly increased since this earlier period.
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