ANALISIS PENGARUH FASILITAS U-TURN TERHADAP KINERJA RUAS JALAN (STUDI KASUS: Jl. RAYA INDARUNG DEPAN SPBU BANDAR BUAT KOTA PADANG)

Abstract

Jl. Raya Indarung in Padang City, West Sumatra is a road divided into two lanes (using a median strip). Each road section is equipped with a central opening without a signal to allow for a U-turn. Based on initial observations at the study location, there were vehicles that could not perform a U-turn smoothly, where vehicles had to perform additional maneuvers so that this condition could cause safety problems for vehicles making the same U-turn. This study aims to analyze the performance of unsignalized intersections based on the Indonesian Road Capacity Guidelines (PKJI 2014). In this study, the method used for data collection was a quantitative method. Based on the survey that has been conducted, it shows that the highest average speed on Jl. Raya Indarung on Saturdays in the Bandar Buat-Indarung direction is 28.43 km/hour, and in the Indarung-Bandar Buat direction 29.02 km/hour, the vehicle delay time caused by the U-turn from the Bandar Buat direction to Indarung is 4.35 seconds and from the Indarung direction to Bandar Buat is 3.0 seconds. The total two-way volume data on Wednesday that the largest volume that occurred in the direction of Bandar Buat-Indarung was 10383.05 skr/hour compared to Indarung-Bandar Buat 10702.5 skr/hour, the total two-way volume data on Thursday that the largest volume that occurred in the direction of Bandar Buat-Indarung with a total of 10310.75 skr/hour, compared to Indarung-Bandar Buat 10240.4 skr/hour, the total two-way volume data on Saturday that the largest volume that occurred in the direction of Bandar Buat-Indarung with a total of 10865.85 skr/hour, compared to Indarung -Bandar Buat 10748.2 skr/hour.