PURPOSE: A road marking using optical illusion is provided to help a safe drive by inducing the perspective of a driver to the road marking and to improve the readability of a text by printing the text in an upright shape on a road. CONSTITUTION: A road marking(1) is outputted on a road to form an acute angle between adjacent vertical sides and to form the outputted length of vertical side to be longer than the horizontal side. The horizontal and vertical sides are projected at an equal length in a reference distance between a driver and the road marking.
