Analisa Kinerja Ruas Jalan Underpass Makamhaji Sukoharjo

One of the problems in the city street is the congestion, as in the Makamhaji underpass, which is an alternative path connected to Solo with Sukoharjo. This study analyzes the performance of the underpass road segment to determine environmental condition, road geometry, current volume, road capacity and to know the performance of Makamhaji underpass road, by knowing the volume of traffic flow in the road, and road capacity so that the performance of the road segment results. The method used in this research is done by 2 ways, namely data of traffic volume survey data, road inventory and side obstacle, done directly in field (primary data). And secondary data by way of data settlement either from institution or from internet. Based on the results of all that both the primary and secondary data next to. Based on the results of the work analysis of Sukamarjo Makamhaji underpass roads calculations showing high side barriers 716 events, traffic volume at peak hour from 945 direction to Solo and 1078 directions to kartasura, capacity value 978,098 smps / hour Solo direction and 1148,202 smp / hour direction of Kartasura, with the degree of saturation (DS) Solo direction of 0.5898 and Kartasura direction of 0.6284, and the free flow rate 30.888 km / h, with the degree of saturation that level of service on Jalan underpass Makamhaji Sukoharjo included in service category C, with steady currents, and speed