WAN, Hongliang; DU, Zhigang; YAN, Qixiang; CHEN, Xiaohong. Evaluating the effectiveness of speed reduction markings in highway tunnels. Transport, [S. l.], v. 33, n. 3, p. 647–656, 2018. DOI: 10.3846/transport.2018.1574. Disponível em: https://journals.vilniustech.lt/index.php/Transport/article/view/1574. Acesso em: 10 may. 2025.