UPAYA PENINGKATAN KINERJA U-TURN MANGGIS PADA RUAS JALAN TUANKU TAMBUSAI KOTA PEKANBARU

Jalan Tuanku Tambusai is a commercial area with a road type of 4/2 T in Kota Pekanbaru. U-Turn Manggis is located between segments 1 and 2 of Jalan Tuanku Tambusai. According to the analysis by the Pekanbaru City Traffic Management Team, each segment shows poor performance, with segment 1 having a saturation degree of 0.97 and segment 2 of 0.92. This commercial area contributes to heavy traffic congestion, especially during peak hours. The frequent vehicle movements to and from shops and on-street parking along some parts of the road create significant lateral obstructions, affecting traffic flow at U-Turn Manggis. This study utilized Vissim modeling, focusing on queue length and delay time as parameters for U-Turn performance. By modifying the U-Turn geometry, including adding medians and dedicated lanes for U-Turn users, better performance results were achieved. Queue lengths were reduced to 75.46 meters at AW (East bound) and 168.35 meters at ANW (East not bound), while delay times were minimized to 1.98 seconds at ANW, 1.04 seconds at DW (West bound), and 1.82 seconds at DNW (West not bound).
Keyword : U-Turn, Queue lengths, delay times