UNSUPERVISED MACHINE LEARNING FOR REAL TIME SAFETY MONITORING IN RAILWAY ENVIRONMENTS. International Journal of Engineering Research and Science & Technology, [S. l.], v. 21, n. 4, p. 276–280, 2025. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/1526. Acesso em: 30 apr. 2026.