PENGARUH KENDARAAN PARKIR DI EXIT LANE TERHADAP ARUS JENUH PERSIMPANGAN BERSINYAL STUDI KASUS: PERSIMPANGAN 31. VETERAN- 31. BANDANG- JL MESJID RAYA

• Main Author: MASHURI
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/1748
• Institution: Institut Teknologi Bandung

EFFECT OF A PARKED VEHICLE IN THE EXIT-LANE ON SATURATION FLOW OF A SIGNALISED INTERSECTION (Case- Study: Intersection Jalan Veteran-Jalan Bandang- Jl. Mesjid Raya in Makassar). By: Mashuri, 2001, Bidang Khusus Rekayasa Transportasi, Program Studi Teknik Sipil, Program Pascasarjana, ITB. The objective of this study is to identify the effect of a parked vehicle in the exit-lane on saturation flow and intersection evacuation time.Data of saturation flow and evacuation time were collected with a survey for several parking distances to stop-line. The research comprised several parking positions in the exit-lane i.e, of 21,5m; 31,5m; 41,5m and 51,5m to stop-line respectively and without any parked vehicle. Data was collected during the peak hours on March 14th, 15`s, 19`s, 20t and 21`s 2001, i.e, at 07.00- 11.00 and 13.00- 16.00 WITA. The number of saturated cycles obtained for each condition are 62, 62, 66, 60 and 57 respectively. The number of cycles with a minimum queue length of 50m is 33 for each condition, and these were analysed further. The effect of a parked vehicle is noticed only when the queue length is at least 50m. Saturation flow was determined by Timeslice method of 5 seconds . Data of intersection evacuation time was calculated as a time taken by the latest vehicle leaving from stop-line to the conflict point. The results of this study indicate that the relationship between saturation flow and parking distance followed the Logaritmic model, Y= 736,03Ln( X)+323,53. The relationship between parking distance and evacuation time followed the Eksponential model, Y= 6,1316e-o,o16Y The parked vehicle at 21,5m caused a reduction of saturation flow of 28%, at 31,5m 19%, at 41,5m 15%, at 51,5m 10%. For the intersection evacuation time found that without any parked vehicle, intersection evacuation time is 1,7second. This implies that, 2 second in real on study location still enough for intersection evacuation. The parking distance where the saturation flow has not been influenced by parking vehicle is 82m; for evacuation time is 71m. The comparison of saturation flow for right turn movement to saturation flow for straight ahead movement gives a right turn factor of 0,93