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MENINGKATKAN KAPASITAS JALAN DIPONEGORO, DENPASAR, BALI DENGAN MENERAPKAN MANAJEMEN KAPASITAS I N.Widana Negara; Ketut Gede Aditya Kusuma; A. A. N. A. Jaya Wikrama
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 20, No. 1, Januari 2016
Publisher : Department of Civil Engineering, Udayana University

Jalan Diponegoro merupakan jaringan jalan kolektor primer dengan status nasional yang melayani dan menghubungkan kota-kota antar pusat kegiatan wilayah dan pusat kegiatan lokal. Namun kondisi di lapangan saat dengan lebar jalan 11.6 m dioperasikan 1 arah 2 lajur (2/1) dan tingginya hambatan samping sehingga kapasitas tidak optimal yang memicu sering terjadi kemacetan lalu lintas. Tujuan dari penelitian ini adalah untuk mengetahui kinerja ruas jalan saat ini (2/1) dan alternatip manajemen lalu lintas untuk meningkatkan kapasitas jalan jalan Diponegoro. Hasil analisis diperoleh Perlakuan 1(existing 2/1) didapat kapasitas 3285 smp/jam dengan kinerja tingkat pelayanan F (macet sekali), Perlakuan 2 (didisain 3/1) diperoleh kapasitas 3975 smp/jam (meningkat 21%) dan tingkat pelayanan E (macet), dan perlakuan 3, manajemen prioritas (2/1 dan 1/1D) diperoleh kapasitas jalan 3788 smp/jam (meningkat 15%), di mana pada lajur khusus mobil (2/1) dengan tingkat pelayanan C (lancar), sedangkan pada lajur khusus sepeda motor (1/D) pada tingkat pelayanan F (macet sekali), serta Perlakuan 4 ( desain tipe 3/1 dan menurunkan hambatan samping), diperoleh kapasitas jalan 4330 smp/jam (meningkat 32%) dan tingkat pelayanan D (cukup macet). Hasil analisis perbandingan kualitatif menunjukkan bahwa perlakuan 4 mampu meningkatkan kapasitas yang paling optimal (32%).

PENINGKATAN KAPASITAS PERSIMPANGAN DENGAN ALAT PEMBERI ISYARAT LALU LINTAS (Studi Kasus : Persimpangan Jl. PB. Sudirman/Raya Puputan/Dewi Sartika Kota Denpasar) I Nyoman Widana Negara
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 18, No. 1, Januari 2014
Publisher : Department of Civil Engineering, Udayana University

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At grade intersection connected among Jl.Sudirman S-Jl.Puputan-Jl. Dewi Sartika were controlled by traffic light with 3 stages and with cycle time of 90 seconds. Despite the implementation of one way traffic management, the intersection remains stalled. The purpose of this study is to investigate the capacity management and traffic signal technologies alternatives. The intersection geometry is obtained from topographical surveys while traffic movements are surveyed with a video camera survey. In addition, road side frictions are obtained from the manual traffic counting. The experimental design applied observational techniques and cross section approaches. Three treatments were tested using Indonesia Road Capacity Manual (MKJI). The analysis found that intersection redesigned was reduced the total lost time (LTI) of 22 seconds to 15 seconds (23%), while simulation analysis with MKJI (1997) showed that treatment-3 gave better results compared with treatment-2 and treatment-1. A level of service F (worst) is reached if the intersection is redesigned with a single program control device (treatment-2),

PEMILIHAN MODEL HUBUNGAN ANTARA VOLUME, KECEPATAN, DAN KERAPATAN JALAN DALAM KOTA (Studi kasus: Jalan Ahmad Yani, Denpasar) I Kadek Edy Wira Suryawan; I. N. Widana Negara; A.A.N.A. Jaya Wikrama
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 19, No. 1, Januari 2015
Publisher : Department of Civil Engineering, Udayana University

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Ada tiga karakteristik arus lalu lintas yaitu volume lalu lintas, kecepatan, dan kerapatan. Lokasi penelitian ini pada Jalan Ahmad Yani yang memiliki 2 lajur 2 arah tanpa median (2/2 UD). Data yang diambil dari lokasi penelitian adalah data volume kendaraan, kecepatan, data geometrik, dan data kecepatan yang digunakan adalah model Greenshield, Greenberg, dan Underwood. Validasi hubungan model lalu lintas adalah untuk mendapatkan volume maksimum atau kapasitas berdasarkan sebaran data, nilai koe sien korelasi (r) dan kesesuaian kapasitas untuk hubungan volume, kecepatan, dan kerapatan. Dengan menggunakan model Greenshield didapat nilai kapasitas yaitu 1555 smp/jam, menggunakan model Greenberg didapat nilai kapasitas yaitu 1858 smp/jam, dan menggunakan model Underwood didapat nilai kapasitas yaitu 1828 smp/jam. Berdasarkan MKJI didapatkan nilai kapasitas yaitu 2508 smp/jam, dan model Greenberg merupakan model yang paling mendekati nilai kapasitas.

PERBANDINGAN KAPASITAS JALAN ANTARA MODEL PENDEKATAN LALU LINTAS DENGAN MKJI PADA JALAN PERKOTAAN BERLAJUR BANYAK (STUDI KASUS: JALAN RAYA PUPUTAN NITI MANDALA, DENPASAR) Made Hendi Adi Pranata A.; I Nyoman Widana Negara; A.A.N.A Jaya Wikrama
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 18, No. 1, Januari 2014
Publisher : Department of Civil Engineering, Udayana University

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There were three main characteristics affecting traffic flow; those were volume, speed and density. The relationship between those three characteristics was interconnected to each others. This study was intended to investigate the relation between volume-speeddensity on urban road and also to investigate the comparison of road capacity using Greenshield, Greenberg and Underwood Models and MKJI. The location of this study was on Jln. Raya Puputan Niti Mandala which had 3 lanes one-way roads. The Data was analyzed using 3 traffic approaches: Greenshield, Greenberg, Underwood models and MKJI. The largest correlation coefficient (r) was used based on the relation of variable X and Y to gain the maximum volume or capacity (C) which was showed from the best modeling result for the relationship of traffic models. The best model is Greenshield, with (C) values in lanes 1, 2 and 3 are 1340 pcu/hr, 1667 pcu /h, 547 pcu/hr respectively. Based on MKJI model showed that the capacity value for lanes 1 and 2 are 1341 pcu/hr and lane 3 is 1185 pcu/hr. The difference of capacity value on each lane using MKJI was due to the motorist’s behavior who tends to use line 2. This is because in lane 2 contained no side barriers as in lanes 1 and 3.

KELAYAKAN TEKNIS PENGENDALIAN PERSIMPANGAN PADA JALAN LINGKAR TANJUNG BENOA, KABUPATEN BADUNG-BALI I Nyoman Widana Negara
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 23, No. 1, Januari 2019
Publisher : Department of Civil Engineering, Udayana University

Menetapkan lokasi dan alternatif desain persimpangan yang tepat menjadi faktor utama untuk studi kelayakan teknis persimpangan pada rencana Jalan Lingkar (ring road) Tanjung Benoa. Tujuan penelitian adalah untuk mempoleh lokasi dan jenis yang tepat berdasarkan volume lalu lintas, kinerja dan umur pelayanan persimpangan. Data yang digunakan adalah data volume lalu lintas di survei secara manual selama lima jam dan data sekunder seperti topografi, LHR, jumlah penduduk diambil dari instansi terkait. Analisis alihan lalu lintas (diversion) menuju jalan lingkar menggunakan Matrik Asal Tujuan (MAT) diselesaikan Fratar Trip Production Model. Rancangan penelitian menerapkan analisis perbandingan dengan menguji terhadap 4 (empat) skenario desain persimpangan daengan menggunakan Manual Kapasitas Jalan Indonesia sebagai acuan. Hasil analisis dari keempat skenario diperoleh bahwa Skenario 4 menunjukkan kinerja persimpangan yang paling baik (DS<0,7) dengan masa pelayanan 10 tahun, disusul Skenario 3 dengan indikator kinerja persimpangan DS<0,7, tetapi masa pelayanan kurang dari 10 tahun, dibandingkan dengan Skenario 2 memiliki kinerja persimpangan sangat jelek (DS>0,7) dan kemungkinan kemacetan persimpangan terjadi pada awal jalan dibuka tahun 2017. Sedangkan Skenario 1 (tanpa proyek) masih mampu memberikan masa pelayanan sampai 5 tahun lagi (tahun 2022) dengan indikator kinerja DS<0,7. Disamping itu, Skenario 4 lebih memberikan peluang untuk digabung menjadi satu ruas antara Jalan Lingkar Tanjung Benoa dengan jalan Pratama Raya dengan tipe jalan 4/2D.

PERBANDINGAN NILAI SATURATION FLOW ANTARA METODE TIME SLICE DENGAN PENDEKATAN DPU 1997. (STUDI KASUS: PERSIMPANGAN JALAN KEBO IWA DENGAN JALAN ARTERI GATOT SUBROTO BARAT) Nyoman Widana Negara; Putu Kwintaryana; I Gede Arya Satria Bandesa Wibawa
JURNAL SPEKTRAN Vol 7 No 2 (2019): Vol. 7 No. 2, JULI 2019
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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COMPARISON OF SATURATION FLOW VALUE BETWEEN THE TIME SLICEMETHODS WITH THE DPU (1997) APPROACH. (CASE STUDY: INTERSECTIONKEBO IWA STREET WITH WEST ARTERIAL ROAD GATOT SUBROTO)ABSTRACTSaturation flow is an important factor in the process of planning, designing and evaluating traffic lightjunctions. The purpose of this study is to find out protected saturation flow in traffic light junctions. Traffic volumedata obtained from the Automatoc Traffic Control System (ATCS) recorded, and the number of residents obtainedfrom the relevant agencies. While data such as geometric intersections, traffic signal aspects and side frictionswere survey manually. The research design used is a comparative analysis between saturation flow measurementsbased on the Time Slice method and the DPU (1997) approach. In this study applied 2 (two) treatments, namelyTreatment-1; measurement and analysis of saturation flow values based on lane width and Treatment-2;measurement and analysis of saturaton flow values based on total approach width. The results of the measurementand analysis in Treatment-1, obtained that the saturation flow value is very varied depending on the pattern oftraffic movements. In the straight lane movement (S1-1), the value of saturation flow based on the Time Slicemethod obtained at 2.130 pcu / hour is greater than 10% compared to DPU (1997) of 1.976 pcu / hour. Meanwhilein the straight lane with the right turn movement (S1.2), the saturation flow value based on the Time Slice methodof 1.681 pcu / hour is 13% smaller than DPU (1997) of 1,935 pcu / hour. Whereas, the results of measurement andanalysis at Treatment-2; the saturation flow value is relatively the same, with the value of saturation flowrespectively is based on the Time Slice method of 3.856 pcu / hour, DPU (1997) of 3,870 pcu / hour and thecombined saturation flow at Treatment-1 is 3,811 pcu / hour .

ANALISIS KINERJA PELAYANAN GARDU TOL PADA JALAN TOL BALI MANDARA Ayu Indah Kencana Dewi; P. Alit Suthanaya; I.N. Widana Negara
JURNAL SPEKTRAN Vol 4 No 1 (2016): Vol. 4, No. 1, Januari 2016
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Abstract: At present, thetoll roadhas an important role to serve traffic flow, especiallyin regionsuch asNusaDua.At this time, has not been knowncharacteristics ofvehiclearrivalandserviceoftoll gate. The objectives of this study are: to analyze the characteristics of vehicle arrival rate, to analyze the characteristics of service level toll gate, to analyze the performance of services toll gate and in order to analyze the optimal number of toll gate according to the arrival rate of vehicles at the entrance to the toll road Bali Mandara. Results of analysis showed thatthe characteristics ofvehicle arrivalin cashtoll gateandelectronictoll gatefollowedPoissondistribution. Characteristicstoll gate1, toll gate2andtoll gate3 had a negativeexponentialdistribution. Performance of cashtoll gateservice systemswithdisciplineFVFSqueuewas: =1,131vehicles/min, =0,230vehicles/min, =0,128, and =0,026min. Performanceof electronictoll gateservice systemwithFIFOqueuingdiscipline was: =0,000923vehicles/min, =0,000001vehicles/min, =0,001668minutes, and =0,000002minutes. The results ofthegeneralisedcost analysisforcashtoll gate showedthat optimalconditions for existing vehicle arrivals can be achievedif onlyone toll gate was opened.

ANALISIS DAMPAK PELAKSANAAN CAR FREE DAY DI KOTA DENPASAR Studi kasus: Jalan Raya Puputan Niti Mandala Renon Ni Putu Decy Arwini; I N. Widana Negara; I P. Alit Suthanaya
JURNAL SPEKTRAN Vol. 3, No. 1, Januari 2015
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Abstract: Renon area is the center of the goverment system of Bali province. As one of the main street in Denpasar city, this street can represent the characteristics of Denpasar city which is the Car Free Day was held in in every Sunday morning in this street, as a simple way to reduce the air pollution and noise. The calculation in this journal is road performance, air pollution and noise level for 2 condition that is in Car Free Day and in working day. From the calculation result of road performance, the capacity of the street is 4.110 pcu/hour with degree of saturation is 0,8. The level of street service is on D category where the flow is almost unstable with high volume of traffic. The traffic volume is mostly reached the capacity and delay is frequently occur in this street. The measurement process of the level of air pollution showed that from six parameter which tested were over all are still under the standard quality which is allowed as good and medium category. The Sulfur dioksida (SO2) which was measured in busy day showed the improvement about 6,78% from the measurement which is done in Car Free Day. The nitrogen dioksida showed the improvement for about 36,35% , the carbon monoksida also showed the improvement for about 366,25%, the total dust had the greatest improvement for about 599,95% or six time greater rather than the level of total dust in Car Free Day. In the other hand, oxidantshowed the improvement for about 28,75%.The noises which occured in Car Free Day showed the average level of dB(A)is 61,65 whereas in workdays showed 72,77 dB(A). At 07.30 until 07.45 in the morning , the maximum level of noises occurs in Car Free Day and in work day. The noises improvement which occured when the Car Free Day was held with workday is about 19,17%.

ANALISIS BIAYA DAN PENANGANAN LOKASI RAWAN KECELAKAAN AKIBAT KECELAKAAN LALU LINTAS DI KOTA DENPASAR I.G.A Putri Adnya Swari; P. Alit Suthanaya; I.N. Widana Negara
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Denpasar city has a traffic accident rate is high compared to most other regions. Contributing factor is the traffic condition, which is an accumulation of traffic conditions the interaction of the various characteristics of driver, vehicle, road infrastructure and environmental characteristics. By that condition, it needs an effort to identify the black site, black spot, the cost of accidents and treatment efforts to reduce traffic accidents. The research has used secondary data from local police department as an accident data from 2007 until 2011 and survey’s data on the location. Of which data continue to be analyzed with the number of accident to find out the black site with Z-score method and to determine the black spot with cusum method. While the analysis of accident cost using the method of Gross Output (Human Capital). In restraining accident, a research should be done to identify causing accident factors. Based on analysis of black site obtained that the lines of the street in denpasar as an black site is on quadrant A, consisting of Ngurah Rai By pass line, Gatot Subroto and Imam Bonjol lines. The Cusum determination done to identify the location of black spot found on Ngurah Rai Bypass street Sta 8 - Sta 9 with cusum score 12,938.The cost of accident victims and accident costs were highest in 2011 in the amount of 36.988.633.141/year and 81.267.473.411/year. Recommendation from the research is that government should observe safety factors for the roadway users with put in traffic sign and the other safety facilities on research areas which has black spot.

PENINGKATAN PERSIMPANGAN BANDARA NGURAH RAI DITINJAU DARI PERSPEKTIF KINERJA PERSIMPANGAN Nyoman Widana Negara
JURNAL SPEKTRAN Vol 6 No 2 (2018): Vol. 6, No. 2, Juli 2018
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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ABSTRAK Persimpangan Bandara Ngurah Rai memainkan peranan penting untuk pelayanan transportasi, akses Bandara Ngurah Rai dan aktivitas budaya lokal. Kemacetan yang terjadi pada persimpangan ini sebagai dasar Kementerian PUPR, melalui BPJN-8 melaksanakan peningkatan kapasitas persimpangan dengan simpang susun dengan bundaran (roundabut interchange), akan tetapi penerapan konsep ini masih ada pro-kontra dari sisi budaya lokal Bali. Data lalu lintas dan gambar rencana persimpangan, dan jumlah penduduk diperoleh dari instansi terkait. Peramalan dan analisis pergerakan arus lalu lintas (MAT) menggunakan trip distribution Detroit model. Rancangan penelitian adalah analisis perbandingan (comparative analyisis) dengan 2 Skenario yaitu Skenario-1 (do nothing) dan Skenario-2 (roundabout interchange). Hasil analisis kinerja persimpangan diperoleh bahwa Skenario-2 lebih baik dibandingkan Skenario-1, dengan indikasi Skenario-2 mencapai DS>0,75 (macet) pada tahun 2028 dibandingkan dengan Skenario-1 terjadi DS>0,75 (macet) pada Tahun 2018, hal ini disebabkan karena kapasitas pada Skenario-2 lebih besar 63% dibandingkan Skenario-1 dan akibat adanya pengalihan arus lalu lintas melewati underpass sebesar 51.57%. Hasil observasi lapangan dan gambar rencana menunjukan bahwa simpang susun dengan bundaran telahmempertimbangkan aktivitas budaya lokal dengan menyediakan jalur dan ruote alternatif agar aktivitas Agama dan Budaya dengan tidak lewat underpass (mesulub).

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