ANALISIS KINERJA SIMPANG TAK BERSINYAL PADA DUA TITIK AKSES RUAS JALAN KOLEKTOR PERKOTAAN (Studi Kasus: Simpang Jalan Kolonel Masturi - Cihanjuang dan Simpang Jalan Kolonel Masturi - Parongpong, Kabupaten Bandung Barat)

Abstract

The performance of unsignalized intersections on urban corridors is affected by traffic volume, vehicle composition, intersection geometry, side friction, and minor road gap acceptance behavior. This study evaluates two unsignalized intersections on Jalan Kolonel Masturi, namely the Kolonel Masturi - Cihanjuang intersection and the Kolonel Masturi - Parongpong intersection in West Bandung Regency. Field data were collected through geometric surveys, 15-minute classified traffic counts, side friction observations, and gap recording during morning and afternoon peak periods. The analysis refers to the Indonesian Highway Capacity Manual 1997 and uses capacity, degree of saturation, delay, and queue probability as key indicators. The results show that the peak flow at the Cihanjuang intersection is 947 pcu/hour with a capacity of 1,277 pcu/hour, a degree of saturation of 0.74, a delay of 26.4 seconds/pcu, and an upper queue probability of 41.2%. At the Parongpong intersection, the peak flow is 908 pcu/hour, capacity is 1,238 pcu/hour, degree of saturation is 0.73, delay is 29.7 seconds/pcu, and upper queue probability is 47.5%. The DS values remain below the critical limit of 0.85, but queue probability and side friction indicate the need for operational traffic management.