Laser scanning on road pavements: a new approach for characterizing surface texture

Area of Science:

• Civil Engineering
• Materials Science
• Geotechnology

Background:

• Road pavement surface texture is crucial for locomotion safety and eco-compatibility.
• Skid resistance is a key pavement surface characteristic influenced by texture.
• Current methods often rely on 2D analysis, potentially limiting comprehensive texture characterization.

Purpose of the Study:

• To investigate the application of laser scanner techniques for asphalt texture characterization.
• To transition from 2D to 3D analysis of road pavement surfaces for improved parameter assessment.
• To evaluate the potential of laser scanning for detailed and representative surface layer analysis.

Main Methods:

• Utilizing high-precision laser scanners (e.g., triangulation types) for pavement texture analysis.
• Conducting experiments on various asphalt types in laboratory and in situ conditions.
• Collecting 3D data for areal surface layer characterization.

Main Results:

• Laser scanners provide a 3D perspective, expanding analysis beyond traditional 2D methods.
• The technique allows for homogeneous and representative data acquisition in a single measurement.
• The study highlights the practical application of laser scanning in both controlled lab settings and real-world field tests.

Conclusions:

• Laser scanning offers an innovative and effective approach to asphalt texture characterization.
• 3D analysis using laser scanners can yield more comprehensive data for assessing road performance parameters.
• This method holds promise for improving road safety and eco-compatibility through better texture evaluation.