1. Budras, J. (2001). “A synopsis on the current equipment used for measuring pavement smoothness.” Federal Highway Administration, U.S Department of Transportation
2. Centre for Transportation Research and Education (2006). “Evaluation of U.S. and european concrete pavement noise reduction methods.” National Concrete Pavement Technology Center, Iowa State University, Ames, IA, pp. 46–50.
3. Hanson, D. I., Jame, R., and NeSmith, C. (2004). “Tire/Pavement Noise Study.” NCAT Report 04–02, National Center for Asphalt Technology, Auburn University, Alabama, United State, pp. 12–20.
4. Hyun, T. J., Hong, S. J., Kim, H. B., and Lee, S. W. (2013). “Estimation of Tire-Pavement noise for asphalt pavement by using mean profile depth.” Journal of the Korean Society of Civil Engineers, Vol. 33, No. 4, pp. 1631–1638, DOI: 10.12652/Ksce.2013.33.4.1631.
5. International Organization for Standardization (1997). Measurement of the Influence of Road Surfaces on Traffic Noise-Part 2, Close-Proximity Method ISO Standard 11819–2.