Roundabouts generally have a better survival rate than other types of intersection control. This is due to the large flow of traffic as a primary arterial road. W hen rush hour ( Peak hour ) congestion often occurs as a result of the convergence of traffic coming from Jl. The high volume of traffic that passes through the roundabout causing congestion or meeting a pretty solid vehicles from different directions, either from the direction of Jl. Radin Inten roundabout is one of the important roundabout in the city of Bandar Lampung, which serves traffic from different directions, namely the traffic flow coming from Soekarno Hatta street and Jl.
? MKJI_1997,_kapasitas,_derajat_kejenuhan,_tundaan,peluang_antrian,_geometri_simpang,_kondisi_lingkungan,_dan_volume_lalulintas. Thus obtained the performance of traffic flow on Wednesday, May8, 2013 is more dense than the performance of the traffic flow on Monday, May 6,2013. Afterin-depth analysis of the survey results on Monday shows the level of capacity ( C ) is7804,316 pcu/hour to AB, the largest value of DS on Wednesday was 0,784 forweaving area DA, the highest number of total vehicle volume is 55504 and theaverage volume of 7401 veh/hour on the while the traffic delays thatoccur on was 16,044 sec/pcu and average delay - the average is 20.044sec/pcu, the biggest queue for opportunities on is the weaving area DAthat is 17 � 39 %. The tools used in survey include stationery, cameras,counter, meter, and stopwatch than Microsoft Excel as a tool to analyze the data. The experiment was conducted at the roundabout intersectionof Gadjah Mada University.
MANUAL KAPASITAS JALAN INDONESIA MANUAL
The standard used in this study is the standard Indonesian Highwa圜apacity Manual 1997. The purpose of this study was to determinecapacity of the roundabout intersection area and to evaluate performance ofroundabout. Traffic control at theroundabout intersection is the most critical and important in the overall movement oftraffic on the road network in the city. The crossing point of the fourwaytraffic flow is called the intersection or roundabout. There is intersection along with road segment. greatest congestion on the fabric of CA ( from North to East and vice versa ) due to the tangle of capacity can not serve existing traffic volumes.
The research value of the service level ( level of service ) tangle AB ( from Bakauheni to Tanjung Karang vice versa)is A with degree saturation of 0.4357, tangle BC (from Tanjung Karang to Kotabumi vice versa) is B with degree saturation of 0.6636, while the fabric of CA (from Kotabumi to Bakauheni vice versa) is E with degree saturation of 0.9471. This research in a survey to obtain the facts - the facts of the symptoms that are known indicated and evaluated by doing examples in a manual the road capacity Indonesia (MKJI). The purpose of this study was to determine the Level of Service ( LoS ), evaluate the performance of capacity and the feasibility of a roundabout. The high volume of traffic that passes through the roundabout causing congestion or meeting a pretty solid vehicles from different directions. Radin Inten roundabout is one of the important roundabout in the city of Bandar Lampun, which serves traffic from different directions, namely the traffic flow coming from Soekarno Hatta street and Z.A Pagar Alam street.
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