Rini, Rini Astuti. 2022. “THE EFFECT THE EFFECT OF SIDE OBSTACLES ON TRAFFIC FLOWS (Case Study of Prof. A. Majid Ibrahim Street, Sigli City): Side Barriers, PKJI 2014, Urban Road”. SainsTech Innovation Journal 5 (1):183-91. https://doi.org/10.37824/sij.v5i1.2022.283.