Leung, Yuen-Ting Fiona, Susan Tighe, Scott Penton, and Peter VanDelden. “Evaluation of Pavement Noise Using Statistical Techniques”. Canadian Acoustics 33, no. 3 (September 1, 2005): 76–77. Accessed October 18, 2021. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1752.