1. FHWA, “MEASURING AND SPECIFYING PAVEMENT SMOOTHNESS,” FHWA, 2016.
2. Investigation of Increase in Roughness Due to Environmental Factors in Flexible Pavements Using Profile Data from Long-Term Pavement Performance Specific Pavement Studies 1 Experiment;Perera,2017
3. Pavement Smoothness Index Relationships: Final Report;Smith,2002
4. Study of Rut-Depth Measurements;DarHao,2001
5. Measuring and evaluating of road roughness conditions with a compact road profiler and ArcGIS;Nueraihemaitijiang,2016