RATROUT, Nedal Taisir; ISSA, Yazan F. Effectiveness of Newly Introduced Variable Message Signs in Al-Khobar, Saudi Arabia. Promet - Traffic&Transportation, [S. l.], v. 26, n. 2, p. 169–177, 2014. DOI: 10.7307/ptt.v26i2.1305. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2458. Acesso em: 26 aug. 2025.