Mavromatis S, Matragos V. Grade impact investigation during stopping sight distance determination on 3D road environment. J. sustain. dev. transp. logist. [Internet]. 2021 May 1 [cited 2026 Jul. 9];6(1):72-80. Available from: https://jsdtl.sciview.net/index.php/jsdtl/article/view/132