The study of the equation of the relationship between the roughness value and skid resistance of the pavement and the study of the equation for the deterioration of the skid resistance in actual use conditions

Abstract

The objective of this study In order to study the relationship and create the relation equation between roughness and surface roughness And study the factors that affect the deterioration, stiffness of the pavement To create equations for deterioration of the surface stiffness in actual usage conditions The study was conducted on AC 60-70 and Para Slurry Seal pavements aged 2-3 years. The study was divided into 2 groups. By group 1, the group of surface characteristics, while group 2, the forces acting on the surface Which the study found that The roughness of the road surface tends to be in a direction which is quite relevant to the surface roughness of both the road surface AC 60-70 and Para Slurry Seal road surface. Which is the relation equation between roughness and the skid resistance of the pavement of the AC 60-70 type is y = 1.0413x - 0.0098 and of the Para Slurry Seal type is y = 0.9475x - 0.0775. And the analysis using the federation coefficient of factors affecting the deterioration of the surface pavement found that the surface temperature, pavement age (years), cumulative vehicle volume and truck volume. It is a factor that significantly affects the deterioration of the surface friction of AC60-70 and Para Slurry Seal surfaces and with statistical methods, Multiple Regression Analysis found that the form of the equation is suitable for the study of the equation for the deterioration of the surface friction In actual use conditions The pavement type AC 60-70 is the viscosity of the pavement type AC 60-70 = 0.89 - 0.028pavement age (years) + 2.473x10^-8 cumulative vehicle volume - 1.1x10-7cumulative truck And the Para Slurry Seal type is the friction of the Para Slurry Seal type = 1.036 - 0.085the age of the pavement (years) - 6.863x10^-9cumulative vehicle volume - 8.432x10^-8 collector truck