Abstract
Development of a new non-contact profilometer using a laser interferometer has made measurement possible at the normal speed of vehicles and enabled a huge volume of data to be processed rapidly. Employment of the “sequential two point method (STP method)” has made measurement of the profile at intervals of 1mm and with accuracy of ±1.2mm. The new profilometer can be used to analyze even the macrotexture and obtain the profile quite accurately. The acquired data can be used as basic materials for evaluating the geometrical characteristics of pavement and a wide range of approach is now possible to solve various problems.
