The effect of median opening on traffic characteristics on the arterial street

Abstract

Pettarani street is equipped with a median opening as a facility for vehicles to reverse the direction of travel. The median opening width in the Pettarani section varies between 20 m - 37 m. The wideest median opening width in Badan Pertanahan / LPMP segment, while the narrowest median opening width is The Mutiara segment. The largest traffic volume that merged in the median openings of Pettarani street for morning peak hour 1816 pc/h in HM. Asyik Mosque and Telkom segments (Pettarani S-S). For afternoon peak hour with a value of 1802 pc/h. The median opening segment HM. Asyik Mosque has the highest density value, which is 17 pc/km/ln in the morning and 16 pc/km/ln in the afternoon. The highest density value for diverging movement is 32 pc/km/ln occurs at HM Asyik Mosque median opening segment. The wider the median opening results in increased density, this is due to increased space for the vehicle to do a reverse rotation maneuver, thus increasing movement disturbances for opposite flow and flow behind the vehicles that will do reverse rotation. The greater the volume in the main section the more it affects the movement of vehicles that are in the median opening to do merging and diverging, thereby increasing density.