Acquisition method of asphalt pavement texture information based on the CPR Technology

Abstract

In order to obtain the asphalt pavement texture information in real time and accurately monitor the anti-skid performance of the road pavement, an automatic close range photogrammetry system (ACPR system) was proposed and built based on the circle arranged three cameras close range photogrammetry (CPR) technology to obtain the asphalt pavement surface texture. Automatic image acquisition and 3D reconstruction were achieved by the ACPR system. Sand patch method and laser scanning method (ZGScan) were used to collect the on-site comparison test of the asphalt pavement texture. Mean texture depth (MTD) and root mean square roughness (RSMR) were chosen as the statistical indicators of road surface texture. The results show that the texture data obtained by ACPR system has relatively high accuracy and efficiency, and the recognition accuracy is close to 0.02mm. The ACPR system improves the efficiency and accuracy of traditional close range photogrammetry and provides real-time and effective road surface anti-skid information for subsequent safety braking of autonomous vehicle.

Optimization and Development of the Model for Monitoring the Deformations on the Airport Runways

“…The phenomenon of the deformations presents a big problem on the runways, which can be abolished with early precautions when dealing with airport infrastructure. The automatized obtainment and spatial data processing of information about the deformations on the road surfaces and on the runways are the subject of many kinds of recent research [14][15][16][17][18][19][20][21][22]. The authors of the research mostly analyze the recordings of the roadways and runways which are a product of remote sensing.…”

Evaluación del desgaste de pavimento flexible mediante el uso de fotogrametría de corto alcance

“…El problema de investigación radica en que un estudio continuo de las fallas descritas conlleva un elevado costo; además, los resultados se obtienen luego de un intervalo de tiempo muy extenso [7], [8]. Con el fin de evitar problemas mencionados, como accidentes de tránsito principalmente producto del desgaste superficial del pavimento, fallas por fatiga, costos en la evaluación de la capa de rodadura, entre otros, ahora se investiga con la utilización de la fotogrametría de corto alcance (FCA) [9], [10]. El empleo de la FCA se justifica, ya que solventa los inconvenientes dados en estudios de fallas sobre vías [11]; adicionalmente, se puede estimar el desgaste de la superficie de un pavimento flexible en una vía [12].…”