Dr. Rajendra Khatawkar, Vijay B. G, Rudraswamy C. K,. “Study on Impact of Gradient on Capacity of Two Lane Undivided National Highways”. International Journal of Advanced Science and Technology 29, no. 3 (March 17, 2020): 5513 - 5520. Accessed March 22, 2025. https://sersc.org/journals/index.php/IJAST/article/view/6059.