Abstract
In order to use thermoplastic materials on expressways it is one of the fundamental problems to apply that materials thinly. We have developed the systems for applying that materials thinly, and investigated the characteristics of the thin road marks.
The obtained results are summarized as follows. (1) We can apply thermoplastic materials in about 0.7mm thick, (2) the durability of thin thermoplastic marks increases by about ten times of paint marks of 0.2mm thick, (3) there is no significant difference between the dynamic skid resistance coefficients on wet surface of thin thermoplastic and paint marks, (4) the total costs of thin thermoplastic marks are less than that of paint marks, and (5) it is realizable to use thermoplastic marks on expressways.
