scholarly journals Traffic Assessment for Unsignalized Intersection Under Influence for Side Friction on Padang Lawas, North Sumatera

2020 ◽  
Vol 1 (2) ◽  
pp. 1-7
Author(s):  
Muchammad Zaenal Muttaqin ◽  
Desi Yanti Futri Citra Hasibuan

An unsignalized intersection is a part of a road where currents from different directions or directions meet. There was a conflict between currents from theopposite direction and intersecting each other, resulting in congestion along the arms of the intersection. Likewise, at the intersection of four arms without a signal at Sibuhuan Market, Padang Lawas Regency, North Sumatra, there is a congestion caused by the reduction in the effective width of the road due to parking on the road. At the intersection of four arms without a signal at Sibuhuan Market, Padang Lawas Regency, North Sumatra, there is a congestion caused by side obstacles, a high vehicle population that is not matched by the availability of adequate infrastructure so this research aims to analyze the performance of the four-arm intersection without a signal. based on Indonesian Highway Capacity Manual (MKJI 1997) and analyzes them to improve the performance of these unsignalized intersections. The analysis of the results showed that the intersection performance for the unsigned intersection conditions in the existing condition with the parking on the side of the road which reduced the effective width, the maximum total flow was 2341 pcu / hour, capacity (C) = 2707.06 pcu / hour, and the degree of saturation (DS) = 0.86, intersection delay (D) = 14.62 seconds / pcu and queuing opportunity (QP) 30.03 - 59.32%. Therefore, it is necessary to recalculate with various alternatives so that the DS value meets the requirements of the Indonesian Highway Capacity Manual, which is < 0.75.

2021 ◽  
Vol 21 (01) ◽  
pp. 53-60
Author(s):  
Desi Yanti Futri Citra Hasibuan ◽  
Muchammad Zaenal Muttaqin

[ID] Persimpangan tak bersinyal Pasar Sibuhuan berlokasi di Desa Sibuhuan, Kabupaten Padang Lawas, Sumatera Utara. Persimpangan ini merupakan simpang tak bersinyal yang memiliki 4 (empat) lengan, dengan 2 (dua) jalur 2 (dua) lajur tanpa median. Tingginya derajat kejenuhan (DS) yang disebabkan oleh volume arus arus lalu lintas yang mengalami peningkatan serta hambatan samping yang tinggi. Dan hal tersebut sulit diimbangi dengan ketersediaan sarana dan prasarana jalan yang ada. Sehingga keadaan ini mengakibatkan munculnya permasalahan di persimpangan tak bersinyal Pasar Sibuhuan tersebut, terutama kemacetan atau penumpukan kendaraan di persimpangan. Tujuan dari penelitian ini adalah untuk mengetahui nilai derajat kejenuhan (DS) pada kondisi eksisting, alternatif apa yang dilakukan dalam mengoptimalisasi persimpangan tak bersinyal Pasar Sibuhuan, berapa derajat kejenuhan (DS) yang dihasilkan dari hasil optimalisasi, dan bagaimana perbandingan nilai derajat kejenuhan (DS) sebelum dan sesudah dilakukan optimalisasi. Teknik penelitian yang dilakukan yaitu dengan melakukan survei langsung dilapangan pada saat jam puncak selama 3 (tiga) hari, 2 (dua) hari sibuk dan 1 (satu) hari tak sibuk untuk mendapatkan data data-data yang diperlukan seperti volume lalu lintas, geomterik simpang dan data lainnya. Kemudian data-data yang telah didapat tersebut diolah dan di analisis menggunakan acuan Manual Kapasitas Jalan Indonesia (MKJI) 1997. Jenis penelitian ini adalah deskriptif kuantitatif dalam penilaian terhadap kinerja lalu lintas pada persimpangan. Hasil yang didapatkan dari analisa kondisi eksisting pada persimpangan tak bersinyal  Pasar Sibuhuan diperoleh nilai Derajat Kejenuhan (DS) = 0,86, nilai Derajat Kejenuhan (DS) pada simpang empat Pasar Sibuhuan telah melewati nilai yang disarankan oleh MKJI 1997, yaitu DS ≤ 0,75. Langkah alternatif yang dilakukan untuk mengoptimalkan kinerja persimpangan ada 4 (empat) alternatif, yaitu dengan meminimalisirkan hambatan samping nilai DS = 0,78, pelebaran jalan minor menjadi 5,10 m nilai DS = 0,78, meminimalisirkan hambatan samping dan pelebaran jalan minor menjadi 5,10 m nilai DS = 0,77, dan merubah simpang tak bersinyal menjadi simpang bersinyal nilai DS = 0,58. Hasil alternatif didapat dari analisa yang dilakukan dapat mengurangi Derajat Kejenuhan (DS) yang diinginkan sesuai dengan yang disarankan oleh MKJI 1997. [EN] An intersection is a part of a road a where currents from different directions of direction meet. That is why at the instersection there is conflict between current from opposite directions and and intersecting each other, resulting in congestion along the arms of the intersection. Likewise, at the intersection of four arms without a signal at Sibuhuan Market, Padang Lawas Regency, North Sumatra, there was a congestion caused by the reduction in the effective width of the road due to parking on the road. At the intersection of four arms without a signal at Sibuhuan Market, Padang Lawas Regency, North Sumatra, there is a congestion caused by side obstacles, a high vehicle population that is not matched by the availability of adequate infrastructure (infrastructure) so that this study aims to analyze the performance of the four-arm intersection. based on the Indonesian Road Capacity Manual (MKJI) 1997 and analyzes intersections to improve the performance of these unmarked intersections. The analysis of the results showed that the intersection performance for the unsigned intersection conditions in the existing condition with the parking on the side of the road which reduced the effective width, the maximum total flow was 2341 pcu / hour, capacity (C) = 2707.06 pcu / hour, and the degree of saturation ( DS) = 0.86, intersection delay (D) = 14.62 seconds / pcu and queuing opportunity (QP) 30.03 - 59.32%. Therefore it is necessary to recalculate with various alternatives so that the DS value meets the requirements of the Indonesian Road Capacity Manual, which is <0.75.


2019 ◽  
Vol 19 (2) ◽  
pp. 133-142
Author(s):  
Gus Maelan Irfana ◽  
Nurul Hidayati ◽  
Sri Sunarjono

Abstract Traffic congestion in the City of Surakarta gave rise to a phenomenal figure among motor vehicle drivers, called the Traffic Control Volunteers or abbreviated as Supeltas. This Supeltas is present on the road to help organize the movement of traffic, as happened at the Surakarta Ganesha Unsignalized Intersection. This study aims to determine the influence of the existence of Supeltas on capacity, degree of saturation, delay, and queuing opportunities that occur at the intersection. The analysis was carried out using the 1997 Indonesian Highway Capacity Manual. The results showed that the intersection without Supeltas had a capacity of 3,114.03 pcu/hour and a degree of saturation of 1.47, while the same intersection but with Supeltas had a capacity of 3,136.81 pcu/hour and a degree of saturation of 1.51. These results indicate that Supeltas has a positive influence on the performance of the intersection. Nevertheless, the degree of saturation in the location increased due to the increase in traffic volume as well as increased capacity. Keywords: unsignalized intersection, intersection performance, intersection capacity, degree of saturation  Abstrak Kemacetan lalu lintas di Kota Surakarta memunculkan sosok fenomenal di kalangan pengendara kendaraan bermotor, yang disebut Sukarelawan Pengatur Lalu Lintas atau disingkat Supeltas. Supeltas ini hadir di jalan untuk membantu mengatur pergerakan lalu lintas, seperti yang terjadi di Simpang Tak Bersinyal Ganesha Surakarta. Penelitian ini bertujuan untuk menentukan pengaruh keberadaan Supeltas terhadap kapasitas, derajat kejenuhan, tundaan, dan peluang antrian yang terjadi di simpang tersebut. Analisis dilakukan dengan menggu-nakan Manual Kapasitas Jalan Indonesia 1997. Hasil analisis menunjukkan bahwa simpang tanpa Supeltas memiliki kapasitas sebesar 3.114,03 smp/jam dan derajat kejenuhan 1,47, sedangkan simpang yang sama tetapi dengan Supeltas memiliki kapasitas sebesar 3.136,81 smp/jam dan derajat kejenuhan 1,51. Hasil tersebut menunjukkan bahwa Supeltas mempunyai pengaruh positif terhadap kinerja simpang. Meskipun demikian, derajat kejenuhan di lokasi tersebut meningkat karena bertambahnya volume lalu lintas di samping kapasitas yang juga meningkat. Kata-kata kunci: simpang tak bersinyal, kinerja simpang, kapasitas simpang, derajat kejenuhan


2015 ◽  
Vol 776 ◽  
pp. 95-100
Author(s):  
I. Gusti Raka Purbanto

Motorcycle dominates traffic in Bali, particularly in urban roads, which occupy more than 85% of mode share. The three types of vehicles, i.e. motorcycles, heavy and light vehicles share the roadways together. Under mixed traffic conditions, motorcycle may be travelling in between and alongside two consecutive motor vehicles. Considering such a situation, passenger car equivalent values should be examined thoroughly. This study aims to determine passenger car equivalent (PCEs) of motorcycle at mid-block of Sesetan Road. Three approaches are used to examine the PCEs values. This study found that the PCE of motorcycles are in a range between 0.2 and 0.4. This values are about the same to the existing PCE of the Indonesian Highway Capacity Manual (1997). This study also pointed out that motorcyclists and car drivers may behave differently to the existence of motorcycles. Car drivers are more aware than motorcyclists on the existence of motorcycle on the road. Further, more samples are required to obtain comprehensive results. In addition, the presence of heavy vehicles need to be considered for future study.


2018 ◽  
Vol 7 (1) ◽  
pp. 11-23
Author(s):  
Cut Mutiawati ◽  
Lulusi Lulusi ◽  
Fitrika Mita Suryani ◽  
Sugiarto Sugiarto

On-street parking leads to reduced road capacity and decreased traffic performance of the certain road. Therefore, this study was conducted to evaluate the feasibility of on-street parking based on road performance. The study was conducted at Central Business District namely Peunayong, Banda Aceh. Based on the Indonesian Highway Capacity Manual (IHCM) one of the performance parameter values is Degree of Saturation (DS). The data needed for calculation of DS are the geometric conditions, traffic volume and the side frictions. The results indicate that on-street parking facilities on segment 2 of Khairil Anwar Street should be evaluated, as the DS value is greater than 0.75 (unstable road condition), by changing parking patterns into a parallel configuration or eliminating parking facilities. Furthermore, the parking configuration of R.A. Kartini Street also needs to be rearranged. Despite the stable road performance, this road is uncomfortable to pass because there is only one lane remained due to unfeasible parking patterns and existence of street market along the segment. The road performance of Khairil Anwar Street (segment 1), Ahmad Yani Street, W.R Supratman Street, T.P. Polem Street, Twk. Daudsyah Street and Ratu Safiatuddin Street is in stable condition, with DS < 0.75. This indicating that on-street parking facilities can be maintained. While as for the W.R. Supratman and Ahmad Yani Street should be evaluated in year of 2019 to avoid traffic jam along this corridors. 


2019 ◽  
Vol 5 (2) ◽  
pp. 116
Author(s):  
Muhammad Daryl Marta Pratama ◽  
Elkhasnet Elkhasnet

ABSTRAKPersimpangan merupakan suatu bagian jalan yang menjadi pusat pertemuan dari berbagai pergerakan arus lalu lintas. Pada tipe simpang tak bersinyal, sering dijumpai titik-titik konflik arus lalu lintas yang mengakibatkan kemacetan arus lalu lintas terutama pada saat jam-jam sibuk. Contoh kasus terdapat di Kota Bandung, terjadi pada persimpangan Jalan A.H. Nasution dan Jalan Cikadut. Lokasi ini dipilih karena selain kemacetan yang disebabkan oleh titik-titik konflik arus lalu lintas yang tidak teratur pada saat jam sibuk, di sekitar jalan pada simpang ini juga merupakan kawasan pertokoan, pemukiman, sekolah dan juga terdapat pom bensin. Berdasarkan permasalahan tersebut, dilakukan perhitungan dan analisis data pada kondisi awal simpang, didapat nilai derajat jenuh (DS) sebesar 0,983 untuk pagi hari dan 0,937 untuk sore hari. Karena hasil perhitungan simpang pada kondisi awal tidak memenuhi syarat MKJI 1997, yaitu DS < 0,85, maka perlu dilakukan perhitungan ulang dengan beberapa alternatif agar nilai DS bisa memenuhi.Kata kunci: persimpangan, kemacetan, derajat jenuh, MKJI 1997. ABSTRACTIntersection is a part of the road that becomes the center concourse of various traffic flow movements. In the type of unsignalized intersection, there are often traffic flow conflict points which cause traffic jams, especially during rush hour. Examples of cases are in the City of Bandung, occurred at the intersection of A.H. Nasution Street and Cikadut Street. This location was chosen because in addition to congestion caused by irregular traffic flow conflict points during rush hour, around the road at the intersection this is also a shopping area, residential, school and gas station. Based on these problems, data calculations and analysis are carried out in the initial intersection condition, obtained saturated degree (DS) values of 0,983 in the morning and 0,937 in the afternoon. Because the results of the intersection calculation in the initial conditions did not comply the requirements of the Indonesian Highway Capacity Manual of 1997 (IHCM 1997), that’s DS < 0,85, it is necessary to recalculate with some alternative that value of DS can comply.Keywords: intersection, congestion, degree of saturation, IHCM 1997.


2017 ◽  
Vol 29 (4) ◽  
pp. 401-409 ◽  
Author(s):  
Marko Miladin Subotić ◽  
Vladan Jevđen Tubić

The main objective of this paper, based upon the extensive empirical research of free flow in local conditions, is to quantify the unfavourable impact of the flow structure on the road capacity using PCE (Passenger Car Equivalent) values as a function of longitudinal grade. Based on literature reviews and empirical research, it has been proved that the PCE value for all vehicle classes is directly correlated with the road gradient. The PCE values in free flow conditions have been determined for the approved vehicle classes. Based on the measured values, models for determining the average PCE value depending on the upward grade on two-lane roads have been developed. Comparison of the developed models in conditions of free traffic flow with the Highway Capacity Manual (HCM) models has shown lower PCE values in this research. Models for the percentage of PCE values PCE15%, PCE50% and PCE85% have also been established.


2020 ◽  
Vol 3 (1) ◽  
pp. 9
Author(s):  
Amrita Winaya

Traffic congestion is a problem that is often faced by Indonesian big cities. It is related to land use in an area that causes on-street parking. The main cause is the imbalance between demand and supply, namely the need for parking during rush hour exceeds the capacity of existing parking. Another consequence is the increasing of side barriers resulting in the delays on certain roads. Shopping area in Jl.Kapasan, Surabaya is one of the densely areas attracted most people of Surabaya to conduct trading activities and shopping for daily needs. The denstiy of this region will affect the performance of traffic flow and causing delays.The study aims to identify on-street parking in Jl.Kapasan shopping area, consequences arising from parking on the road, and determine the level of service or performance of roads around this shopping area. The analytical methods used are derived from Indonesian Highway Capacity Manual 1997. Based on calculation and analysis, the capacity of Jl.Kapasan without parking on the road was 1468 pcu/hour and with on-street parking was only 1276 pcu/hour.


2018 ◽  
Vol 2 (1) ◽  
pp. 10
Author(s):  
Riska Hawinuti

Jalan Martapura Lama is an alternative road connecting Banjarmasin, Martapura and Banjarbaru city and it is under the administration of Banjar Regency. The existence of Sungai Lulut Market in Kilometer 05 consistently causing congestion to the area, especially during peak hours. The purpose of this study is to determine the impact of market activities on the performance of Jalan Martapura Lama KM 05 indicated by the degree of saturation (DS) and the value of the level of road service. The method of primary data collection was by conducting traffic surveys and measuring geometric conditions in the site manually on Tuesday to Thursday, 06-08 February 2018 during the morning rush hour (07.00-08.00 a.m), the noon hour (12.00-14.00 p.m) and afternoon rush hour (16.00 to 18.00 p.m) while the secondary data was obtained from the internet. The calculation refers to Indonesian Highway Capacity Manual (MKJI) 1997. From the calculation results it can be concluded that the impact of market activities on the performance of Jalan Martapura Lama KM 05 indicated by the degree of saturation (DS) and the value of road level of service with the optimum DS is 0,68 with the value of level of road service is C on Thursday’s afternoon rush hour and the minimum DS is 1.34 with the value of level of road service is F on Wednesday’s morning rush hour. With a total frequency of occurrences and side friction class of 571 frequencies, the maksimum friction is incoming and outgoing vehicles on area alongside roads (EEVs) of 446 occurrences on Tuesday in the morning rush hour.


2017 ◽  
Vol 23 (1) ◽  
pp. 69
Author(s):  
EPF. Eko Yulipriyono ◽  
Djoko Purwanto

Passenger Car Equivalent (PCE) is a conversion factor to make equal the various types of vehicles that operating on the road section into one type of vehicles i.e. passenger cars. Indonesian Highway Capacity Manual (MKJI) 1997 has set the PCE values for various types of vehicle groups either motorized. PCE values of various types of vehicles are not absolute because many factors that affect can change over time and development of automotive technology. This study aimed to find out the changes of PCE value that occurs. As for the purpose of research to determine the current number of PCE values due to the change of operational characteristics of vehicles on a highway especially for urban highways. Data analysis for the determination of PCE values used: time headway method, speed method, capacity method, and vehicle dimension method. The conclusion of this study: PCE of light vehicles (LV) = 1 still in accordance with MJKI 1997; PCE of heavy vehicles (HV) varied depending on the road types. PCE of heavy vehicles that according to MKJI 1997 is used as a median; PCE of motorcycles (MC) of MKJI 1997 need to be adjusted to 0.4 or more, particularly in the calculation of actualy traffic flow.


2019 ◽  
Vol 2 (1) ◽  
pp. 41-50
Author(s):  
Helwiyah Zain ◽  
Meliyana Meliyana ◽  
Muhaimin Muhaimin

Simpang Lamlo is one of No-Signal Three-way Junctions in National Road from Banda Aceh to Medan as a Main road and is connected directly to the Cross-Regional Road that is from Beureuneun to Geumpang as the Minor Road and vice versa. The purpose of this study is to analyze the performance of the No-Signal Three-Way Junctions by using the Indonesian Highway Capacity Manual 1997. Data required in this study are primary and secondary data. The primary data is in the form of the condition data of traffic, intersection geometric, and environment. Secondary data includes the population growth and the map of the road network. Traffic data were collected by using video recording on Monday, Wednesday and Saturday at 7.00 a.m. – 9.00 a.m., 12.00 p.m. – 2.00 p.m and 5.00 p.m. – 7.00 pm. These data were processed by using Microsoft Excel based on MKJI 1997 and and the results were made in the form of tables and graphics. From the tables and graphics, it could be known for the traffic volume, composition, and the peak hours occured in the intersections. The calculation on the peak hour with the current highest peak is on Monday, 5.00 p.m. - 6:00 p.m. in which the traffic volume at the intersection is 2737 (smp / hour). The capacity value of the existing condition in Simpang Lamlo is 2762 (smp / hour). The traffic delay in the intersection is 11,63 (det / smp). The degree of saturation at the existing condition is 0.99, higher than the provision in Indonesian Highway Capacity Manual which is 0,75. The intersection delay value is 15.64 (det / smp) and the queue chance at the intersection is 39,43% to 77,98%,


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