C. . Christos, P. . Grigorios, A. . Nikolaos, P. . Evangelos, and P. . Emanouil, “Road Upgrading in Terms of Geometric and Functional Characteristics”, ASRJETS-Journal, vol. 74, no. 2, pp. 154–165, Dec. 2020, Accessed: Mar. 16, 2026. [Online]. Available: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/6510