ROAD SURFACE LINE SIGN STRUCTURE AND CONSTRUCTION METHOD THEREOF

PROBLEM TO BE SOLVED: To provide a road surface line sign structure and a construction method thereof, capable of easily forming a road surface line sign in a linear shape or a curve shape in a uniform width, and capable of securing visibility of a line sign, even if sign visibility reduces or disappears when the road surface line sign is abraded.SOLUTION: A road surface line sign structure is provided for forming the road surface line sign of a predetermined width, and comprises a regular sign part 13 formed on the upper surface side of a road surface by a coating film of melting type sign paint and an underground sign part 19 formed of the coating film of the melting type sign paint filled in a plurality of underground sign part grooves 17 (an underground sign part groove group 15) cut along the regular sign part 13 on the lower surface side of the regular sign part 31. Outside lines (underground sign part outside lines) 21 and 21' in the width direction of the underground sign paret groove group 15, are positioned and formed on the inside more than outside lines (regular sign part outside lines) 23 and 23' in the width direction of the regular sign part. 【課題】路面ライン標示がきれいな直線状又は曲線状でかつ均一幅に形成することが容易で、かつ、路面ライン標示が摩耗して標示視認性が低下したり消失したりしてもライン標示の視認性を確保可能な路面ライン標示構造およびその施工法を提供すること。【解決手段】所定幅の路面ライン標示を形成するための路面ライン標示構造。路面の上面側に溶融式の標示用塗料の塗膜で形成される本標示部１３と、該本標示部３１の下面側で、本標示部１３に沿って切削された複数本の地下標示部用溝１７（地下標示部用溝群１５）に充填された溶融式の標示用塗料の塗膜で形成される地下標示部１９とを備えている。地下標示部用溝群１５の幅方向外側線（地下標示部外側線）２１、２１?を、本標示部の幅方向外側線（本標示部外側線）２３、２３?より内側に位置して形成する。【選択図】図１−４