Advancing road safety assessment with digital holography: a study on skid resistance of asphalt pavements

Davood Khodadad

doi:10.1117/12.2688297

19 October 2023 Advancing road safety assessment with digital holography: a study on skid resistance of asphalt pavements

Davood Khodadad

Author Affiliations +

Proceedings Volume 12735, Remote Sensing Technologies and Applications in Urban Environments VIII; 1273507 (2023) https://doi.org/10.1117/12.2688297
Event: SPIE Remote Sensing, 2023, Amsterdam, Netherlands

Abstract

Enhancing road safety through improved skid resistance is a critical endeavor in preventing accidents and promoting secure driving conditions. This study delves into the investigation of skid resistance in asphalt pavements using digital holography, focusing on macro and microtexture attributes. By employing off-axis digital holography, the paper presents a novel method to accurately measure surface profiles and assess friction properties. The experimental setup leverages single-shot dual-wavelength holography, providing precise 3D topographic information. The study demonstrates how the obtained phase information aids in deriving surface profiles and subsequently determining friction coefficients. The approach overcomes limitations of conventional methods, offering micron-level accuracy for surface roughness measurements. Through experimental results, the versatility of adjusting measurement accuracy and range based on requirements is showcased. The paper concludes by highlighting the interplay between surface features and friction characteristics, paving the way for improved road safety assessment.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Davood Khodadad "Advancing road safety assessment with digital holography: a study on skid resistance of asphalt pavements", Proc. SPIE 12735, Remote Sensing Technologies and Applications in Urban Environments VIII, 1273507 (19 October 2023); https://doi.org/10.1117/12.2688297

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