POLICY EVALUATION ABOUT THE SETTING PATTERN OF TRAFFIC FLOWS AT JUNCTION OF TRUNOJOYO ROAD - DIPONEGORO ROAD, JEMBER DISTRICT
Nunung Nuring Hayati
Hary Eka Prasetyawan
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One of the transportation problems in Jember District is the setting pattern of traffic flow at the junction of Trunojoyo Road - Diponegoro Road (Simpang Semar). Two years after the setting of the downtown one-way traffic system, the Trunojoyo Road (segment of Semar Junction - Pasar Tanjung Junction) degree of saturation value (DS) increased from 0.3826 to 0.9894. POLRI have a discretionary action to reduce the traffic jam on Trunojoyo Road. This study aimed to evaluate the two setting patterns at Semar Junction (existing conditions (setting pattern 1) and discretion setting (setting pattern 2)). The result of the analysis shows the setting pattern 1 has a higher DS value than the settings pattern 2. The highest DS value of the setting pattern 1 (0.931) occur on Saturday (morning peak hour period). The greatest DS value difference of the setting pattern 1 and the setting pattern 2 is 0.345. The difference is proportional to the traffic flow that is diverted to Trunojoya Road at Semar Junction as big as 2145 motorcycle/hour and 593 light vehicles/hour in the morning peak hour time period.
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