ANALISA PENGARUH PUTAR BALIK (U-TURN) TERHADAP KINERJA RUAS JALAN

(STUDI KASUS JALAN JENDRAL AHMAD YANI KEMALARAJA)

Abstract

To accommodate vehicles changing direction of travel or making a U-Turn, a U-Turn facility was created. Along Jalan Jendral Ahmad Yani Kemalaraja, Baturaja city from in front of Adiwarna to in front of Suzuki, there is a U-Turn facility which causes problems. This problem occurs because the vehicle cannot immediately turn because the turning radius is not enough, so it takes more time to make a U-turn.

From the analysis and calculations that have been carried out on Jalan Jendral Ahmad Yani Kemalaraja in front of Suzuki, the average vehicle makes a U-turn in 15.78 seconds with a queue ratio (p) of 1.10, which means that there is a queue of vehicles, whereas in In front of Adiwarna, the average vehicle makes a U-turn in 15.38 seconds, with a queue ratio (p) of 0.89, which means there is no queue of vehicles. The performance of traffic flow on this road section is seen from the degree of saturation value and the level of service category from the direction of Ramayan to Air Karang has the highest degree of saturation value of 0.84 with a class D service level category, where the road section is unstable in terms of condition. which stops frequently with the highest traffic volume of 2126 SMP/hour. Meanwhile, on the road section leading from Karang Water to Raayana, the highest degree of saturation value is 0.84 with a class D service level category, where the road section is unstable with conditions that frequently stop with the highest traffic volume of 2111 SMP/hour.