Rut of Asphalt Pavement Maintenance and evaluation index of impact analysis

Rut affects the pavement performance directly. «Asphalt Pavement Maintenance Technical Specifications» put the rut in PCI to assess the road damage, However, the severity of disease rut less impact on the PCI, evaluation is not ideal. «Technical Standards Of Highway Assessment Condition» although proposed the rut as an indicator, but not included the structural strength of SSI indicators in the road in the PQI. This indicator will separate rut from the PCI as an indicator of RDI, to retain structural strength SSI index, Use eigenvector methods to weight evaluation of pavement condition, Determine the intrinsic value adapt to the weight vector. Assess the situation of asphalt pavement accurately.