Perencanaan Koordinasi Sinyal di Ruas Jalan Yogyakarta - Solo (Studi Kasus: Simpang Stasiun Brambanan dan Simpang Taman Wisata Candi)

Abstract

— Around Prambanan Temple (Indonesia), two interchanges are close, within 436 meters. The prox-imity of the intersection and the large volume of vehicles passing through the Yogyakarta-Solo road section will cause traffic problems because the two interchanges have yet to be coordinated, resulting in congestion during peak hours. For this reason, an alternative adjustment to the inter-change cycle time is needed to create the two intersections to be coordinated to minimize the oc-currence of congestion. Primary data on the volume and cycle time of existing intersections were collected by direct survey methods to see the coordination performance of existing signals. The primary data processing method used in this study is by modeling Vissim software and also car-ried out optimum green time analysis with the Indonesian Highway Capacity Manual approach (IHCM, 1997) on signal coordination planning. Although the existing condition obtained in this study is that the two intersections have not been coordinated, it can be seen from the level of road service that it is still included in category E and the difference in cycle time at the two intersections. The best alternative cycle time for both intersections is 117 seconds. The travel time value (from East-West direction) is 31.73 seconds with an average travel speed of 49.47 km/h, and in the reverse direction (West-East), the travel time value is 50.99 seconds with an average travel speed of 30.78 km/h.