ANALISIS KINERJA SIMPANG KARANGLO PASCA PEMBANGUNAN UNDERPASS KARANGLO TOL MALANG – PANDAAN

Karanglo underpass construction aims to reduce traffic congestion at the Karanglo intersection due to the addition of the Malang - Pandaan Toll Road arm. Anyhow, at the end road of Karanglo Intersection causes traffic jam and long vehicle queue. Related with that problem, so it is necessary to analyze the intersection performance, alternative improvement, and vehicle operating cost at the Karanglo intersection. The data used in this analysis are primary and secondary data. Primary data are obtained from road geometric measurements and phase and signal cycle measurements, while secondary data are obtained from the Central Statistics Agency (BPS) of Malang Regency and forecasting LHR data and side barriers. For the data processing, it uses Indonesian Highway Capacity Manual (MKJI) method 1997. Vehicle operating cost uses a handbook from Ministry of Public Works Directorate General of Highways 2005. Based on the analysis’ result, the performance of the existing intersection condition obtained delay (D) = 220.12 and the intersection service level (LOS) = E. From the analysis’ result, it is needed an alternative of intersection refinement by designing the signal phase, so that the delay (D) = 21.99 and the intersection services level (LOS) = C. The Vehicle operating cost before there was underpass for light vehicle was Rp 6.143/km. The vehicle operating cost after the underpass for light vehicle was Rp. 4.979/km.