| dc.description.abstract | Vehicle collisions often take place at intersections. Based on data from Badan Pusat
Statistik, Yogyakarta's Special Region has seen a sharp increase in the number of automobiles. It is
estimated that the overall number of passenger cars increased by 3.83%, trucks by 4.00%, and
motorbikes by 3.30% between 2020 and 2021. The length of the vehicle queue grows as a result of
this vehicle growth, lengthening the wait time. This has an impact on the amount of fuel oil wasted
as a result of the lengthy delay. On 2021 up to 2023 Dinas Lingkungan Hidup dan Kehutanan
Yogyakarta did air quality survey which shows the 70% increase of Yogyakarta pollution. The
objectives of this study are to assess the Monjali signalized intersection's performance with the
presence of alley, ascertain how queue length and delay relate to fuel oil, and compare the best
condition for the intersection.
The 1997 Indonesian Road Capacity Manual (IHCM 1997) theory, PTV VISSIM software
calibration, and LAPI-ITB theory (fuel consumption) were all used in this study. There are four arms
at this crossroads, along with four-time phases and a short alley on the north arm. A direct survey is
used in the field to obtain data. The signalized intersection's performance as well as the correlation
between wait times and queue length and fuel oil consumption are examined. The degree of
saturation (DS) value at the Monjali signalized intersection is known to be larger than 0.85 based on
the analysis's findings especially with the existence of the alleyway, indicating that the intersection
is already oversaturated.
Given that the average delay number is more than 60 seconds which is 386 seconds
precisely, the Monjali intersection's level of service is rated as F. By analyzing the several
conditions, each condition has its advantage and impact to the intersection. By closing the alleyway,
resulting in the decrease of delay compared to existing condition and safest flow compared to other
alternatives, by adding separated phase to the alleyway resulting in longer cycle time with the note
that the alley still exist, and it is found that changing the protected phase into opposite phase has
significant impact which the delay decreased by 56% with the note that the alleyway is still exist but
the safety should be considered. It was discovered that a total of 8.653 cc/pcu of fuel oil were lost at
the Monjali intersection as a result of the queue and the delay in time. Result of the condition to
close the alleyway has a fuel consumption of 2.836 cc/pcu, 3.002 cc/pcu in five phase conditions,
and 1.531 cc/pcu for opposite flow. | en_US |
