Mavromatis, Stergios, and Vassilios Matragos. “Grade Impact Investigation During Stopping Sight Distance Determination on 3D Road Environment”. Journal of Sustainable Development of Transport and Logistics 6, no. 1 (May 1, 2021): 72–80. Accessed July 9, 2026. https://jsdtl.sciview.net/index.php/jsdtl/article/view/132.