Lokantara, I.G.W., Rafika Hilmi Nasution and Lia Lisyati (2026) “Quantifying Urban Street Transformation: Integrating Informal Economic Activity Intensity (IIAEI) and Spatial Occupation Ratio (SOR) in Medan City”, Jurnal Perkotaan, 18(1), pp. 102–119. doi:10.25170/perkotaan.v18i1.7911.