Description
Operations
Depending on the condition survey speed and on the equipment, different operations are possible:
– Check according to the Technical Note DEVT1521100N of 30 Sept 2015
– Check according to the 2014 Uni Guide “Longitudinal Evenness – State of the art and IDRRIM CEREMA recommendations”
– Check of intermediate courses
– NBO Expert Evaluation (Notes by Bandes Ondes)
– CP Expert Evaluation (Coefficient of flatness)
– PSD (Power Spectral Density) Expert Evaluation
– IRI (International Roughness Index) Expert Evaluation
– IRL (Longitudinal Reshaping Index) Expert Evaluation
-Rolling Expert Evaluation
– QSPO Expert Evaluation
– sliding SW Energy Expert Evaluation
– sliding SW Energy Expert Evaluation
– sliding LW Energies Expert Evaluation
3D sliding PSD Expert Evaluation
3D sliding PSD Expert Evaluation
– IIR Filtering Expert Evaluation
APL 2015 also performs the checks listed in APL 2000:
NBO 200 check (motorways)
– Check 2000-36
– Wearing course check (except 2000-36)
Limits of use
The APL2015 – Unibox data license should not be used to perform evenness checks during the acceptance of works, according to the GNCDS note, issued in 2019.
