ANALISIS KOORDINASI SIMPANG BERSINYAL SIMPANG PASAR PON DAN SIMPANG NONONGAN MELALUI PENDEKATAN PKJI 2023 DAN VISSIM

Pasar Pon Interchange and Nonongan Interchange which are located right in the center of Surakarta City have poor intersection performance and get an F grade on the Simpang Service Level Index. The intersection, which is located on the Brigadier General Slamet Riyadi road, has a high volume plus an intersection capacity that cannot serve the high current. Because the distance between intersections is only 285 meters, one way of handling can be done signal coordination at the two intersections. The purpose of this study is focused on reducing delays and high queue lengths at the Nonongan intersection by coordinating signals because vehicles in the middle of the intersection to the previous intersection are the Market intersection. The signal coordination method is carried out with CTMC survey data, Spot Speed, Queue Length and Delay and performance calculations are carried out using the Indonesian Road Capacity Guidelines in 2023, and will be continued with analysis of existing performance to signal coordination with the Vissim application. Calibration and validation process is carried out with the SPSS application. The statistical test carried out is by using the Independent T-Test. If the results issued are valid, it will be continued with performance calculations to signal coordination analysis with the Vissim application. From the results of the analysis, the western border of the Nonongan intersection decreased by 56.7% while there was a decrease in delay time by 45.8%. In cycle 2 there was a decrease in queue length by 37.3% then there was a decrease in delay time by 50.4% on the shortage.

Keywords: Signal coordination, interchange performance, performance comparison