Pimentel Vasconcelos, António Luís, Álvaro Jorge Maia Seco, and Ana Maria César Bastos Silva. “Comparison of Procedures to Estimate Critical Headways at Roundabouts”. Promet - Traffic&Transportation 25, no. 1 (1): 43-53. Accessed April 26, 2024. https://traffic.fpz.hr/index.php/PROMTT/article/view/1246.