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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) Journal Industrial Servicess Journal of the Civil Engineering Forum Civil Engineering Dimension Publikasi Riset Orientasi Teknik Sipil (Proteksi) J-Sil (Jurnal Teknik Sipil dan Lingkungan)

Tri Sudibyo

Institut Pertanian Bogor

Author-ID : 2889668

Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Articles

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Pengaruh Bottleneck dalam Variabel Komposisi Kendaraan Berat Terhadap Level Of Service (LOS) Jalan Sudibyo, Tri
Journal Industrial Servicess Vol 2, No 1 (2016): Oktober 2016
Publisher : Fakultas Teknik Jurusan Teknik Industri Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jiss.v2i1.1515

Jumlah dan jenis kendaraan yang melintas pada suatu ruas jalan akan memberikan pengaruh dalam level of service (LOS) atau tingkat pelayanan jalan. Dalam MKJI 1997, ekuivalensi mobil penumpang (emp) menjelaskan perbedaan dampak jumlah dari tiap jenis kendaraan terhadap volume lalu lintas. Pada kendaraan berat dimana umumnya memiliki dimensi besar, manuver dan kecepatan yang terbatas, memiliki emp paling besar diantara jenis kendaraan lain seperti mobil penumpang dan motor. Pada suatu ruas jalan yang sama, dengan besar arus kendaraan yang sama dapat memberikan LOS yang berbeda ketika komposisi kendaraan yang melintas berbeda. Pada suatu arus kendaraan yang konstan juga dapat semakin menurunkan LOS ketika terjadi perubahan dimensi atau penyempitan ruas jalan. Dalam suatu jaringan jalan seringkali tidak dapat dihindari adanya penyempitan (bottleneck) pada titik tertentu dan fluktuasi jenis kendaraan yang melintas, dimana keduanya akan mempengaruhi LOS. Pada penelitian ini dilakukan simulasi dampak dari kedua komponen yang dapat mempengaruhi LOS tersebut, yaitu variasi arus lalu lintas khususnya kendaraan berat, dan fenomena penyempitan (bottleneck) melalui model mikro. Model lalu lintas dibangun dari pengamatan lapangan, dan dilakukan simulasi variasi proporsi kendaraan berat HV dari 0%-30% tanpa merubah total arus Q maupun DS. Dari simulasi yang dibangun didapatkan bahwa pada range 0%-15% HV, tiap peningkatan 5% HV terjadi penurunan kecepatan sebesar 4%, namun pada range 15%-30% HV, tidak terdapat perubahan kecepatan dan LOS

Analisis Kualitas Pelayanan Bus Kota Surabaya Berdasarkan Persepsi Pengguna Dengan Metode Importance Performance Analysis (IPA) Mahardi, Purwo; Sudibyo, Tri; Widayanti, Fitri Rohmah
PUBLIKASI RISET ORIENTASI TEKNIK SIPIL (PROTEKSI) Vol 1, No 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/proteksi.v1n1.p22-29

AbstrakPenelitian ini bertujuan untuk menganalisis tingkat harapan serta tingkat kinerja pelayanan bus kota di Surabaya menurut penumpang bus kota. Berkaitan dengan upaya peningkatan kualitas pelayanan, penelitian ini juga menganalisis faktor yang harus diprioritaskan, faktor yang harus dipertahankan, faktor dengan prioritas rendah dan faktor yang berlebihan. Indikator pelayanan sebanyak 13 variabel yang dikembangkan dari dimensi SERVQUAL. Metode analisis yang digunakan adalah Importance Performance Analysis (IPA) dengan jumlah responden sebanyak 120 penumpang yang diambil dari 6 trayek yang saat ini beroperasi. Hasil analisis gap menunjukkan bahwa tidak ada satupun indikator yang memenuhi harapan penumpang. Penumpang berasumsi bahwa kualitas pelayanan bus kota di Surabaya berada pada level cukup memuaskan. Faktor ketersediaan AC (Air Conditioner) merupakan faktor yang dianggap penting oleh pelanggan tetapi pada kenyataannya faktor ini masih jauh dari harapan. Faktor inilah yang harus mendapatkan prioritas utama dari operator untuk dibenahi agar kualitas pelayanan dapat meningkat sesuai harapan penumpang.Kata kunci: importance performance analysis (IPA), pelayanan, tingkat kepuasan.

Evaluasi Alinyemen Vertikal dan Horizontal Studi Kasus di Depan Gedung Perpustakaan Kampus Dramaga IPB Khuswatun Chasanah; Moh. Yanuar Jarwadi Purwanto; Tri Sudibyo
Jurnal Teknik Sipil dan Lingkungan Vol. 3 No. 2: Agustus 2018
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Campus Library IPB Dramaga has a fairly sharp bend with a limited curved radius, causing the vehicle must be careful when passing even with low speed, especially the medium-size vehicles. The purpose of this research was to evaluate vertical and horizontal alignment in front of library building based on RSNI T-14-2004. The result showed that the road geometric design did not conform to the SNI, especially the horizontal alignment, whereas the vertical alignment did not need to be evaluated. With a plan speed of 30 km/h and vehicle slow down of 3.4 m/s2, the persistent visibility was 35 m. The minimum bend radius for all bends was 36.8 m, while the existing radius at A1, A2, B1, B2, B3, and B4 were 17 m, 22 m, 10 m, 16 m, 6.4 m, and 9 m respectively. Using the rotary radius to allow the vehicle to pass safely, the minimum radius at B3 and B4 at the intersection was 7.3 m.

Analisis Kinerja Simpang Tak Bersinyal Jalan Raya Dramaga-Bubulak Bogor, Jawa Barat Novi Listiana; Tri Sudibyo
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 1: April 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

The potential of traffic problems at non-signal intersection relatively higher and more complex than signalized intersection. Intersection of Dramaga-Bubulak street has no signal and is one of the intersection with high level mobility. The research objectives were to analysis the performance of actual conditions and alternatives strategies to improve intersection performance as well as to know the influence of one way traffic system on intersection performance. The results showed that the volume of traffic passing the intersection were 3816 passenger car unit (pcu)/hour at peak hour with degree of saturation (DS) of 0.85 and delay on the intersection was 14.41 sec/pcu so the intersection service level was B. The service level of intersection was good, so the research analyzed three alternatives strategies to decrease DS value. Performance analysis of traffic showed that alternatives I was the best model alternative condition, because application of one way traffic system on outer ring Bubulak would decreased the service level of Dramaga-Bubulak street.Key words: intersection, non-signal, street

Evaluasi Kinerja Simpang Bersinyal Jalan Pahlawan – Raden Saleh Sarif Bustaman di Bogor Jawa Barat Dwi Bangkit Prakoso; Sutoyo Sutoyo; Tri Sudibyo
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 2: Agustus 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Signaled intersection of Pahlawan steet and Raden Saleh Sarif Bustaman street is one of the main streets in Bogor. This intersection has 3-arm approaches namely Pahlawan Street at East, Raden Saleh Sarif Bustaman Street at North, and Empang Street at West. Highest traffic on weekend is 11653 units/hour or 5087 SMP/hour which occur between 5.20-7.20 pm. Pahlawan - Raden Saleh Sarif Bustaman street obtained inconsistent time cycle of APILL and size of approach dimension which resulted in intersection with high saturated degree. The saturation degree of the intersection of the eastern approaches was 0.75 which meant that this value was same with the standard value in MKJI 1997 which is 0.75. This meant that the performance of intersection capacity was already saturated. The high saturation degree of the intersection resulted in a low level of service level and was classified as, service level E with the intersection delay 45 seconds/SMP. Scenario II is the best alternative scenario for intersections, with the addition of road or lane widening, so the intersection capacity of the eastern, northern and western approaches were 3931, 5066 and 4562 SMP/hour respectively. The average intersection delay became to 9 seconds / SMP, and classified as service level B.Key words: capacity, intersection, intersection delay, service level

Evaluasi Geometri dan Perlengkapan Jalan Lingkar Leuwiliang Bogor Dzaky Syifaurrahman; Muhammad Fauzan; Tri Sudibyo
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 2: Agustus 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Leuwiliang Ring Road had curve, slop and road equipment like signs, markers and street lighting that uncomfortable for drivers. The purpose of this research was to evaluate road geometric based on RSNI T-14-2004 and guidelines no. 038/TBM/1997 and road equipment based on guidelines no. 01/P/BNKT/1991 and SNI 7391: 2008 on Jalan Lingkar Leuwiliang. The results showed that design of geometry and equipment of this road did not conform to Standard. The speed limit used was 50 km/h. The free side area on the 4th curve was of 3 m less than Standard (3.04 m). Slopes of the road were more than 9% on segment 2 (14.21%), 4 (10.94%), 13 (9.01%), 14 (9.19%), 26 (9.20%), 27 (9.20%), 28 (9.49%), 29 (12.15%) and 30 (19.36%). There were no markers on this road then longitudinal line mark was designed on the road side. Dotted line marks were designed at Sta 0+000 to Sta 0+200 and longitudinal line mark were designed at Sta 0+200 to Sta 0+974.5 on the road divider. There were no street lighting on the 7th pole to the 22nd pole so the street lighting were designed on that poles using the lamp type SON 100W patch to the pole with height of 6 m from the road surface.Keywords : free side area, lamp, road, road markings, slope.

Analisis Kemacetan Dan Perkiraan Tingkat Pelayanan Jalan Pada Masa Mendatang (Studi Kasus Jalan Raya Sawangan Depok) Rangga Apriliyanto; Tri Sudibyo
Jurnal Teknik Sipil dan Lingkungan Vol. 3 No. 2: Agustus 2018
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

The road growth relatively smaller than traffic volume growth caused decreasing of the road service level. The purpose of the research were indentified performance existing geometry condition and traffic condition of Jalan Raya Sawangan as well as to formulate program to resolve traffic jam. Existing condition performance of Jalan Raya Sawangan on segment 1 as well as 2 were classified as F and E whereas the non-signal intersection performance of the road was F. The geometry improvement was chosed to resolve traffic jam so the service level for the next 15 years could be calassified as D. Improvement of intersection performance was conducted by changing non-signal intersection becomed signal and changing the signal intersection becomed interchange. Signal intersection was only able to receive traffic load for 10 years thus re-upgrading was required to match with the planned target by changing the intersection to interchange. Service level of interchange obtained level A because suitable with the requirement. Keywords: geometry condition, service level, traffic growth, traffic jam

Pengaruh Limbah Keramik dan Abu Terbang Terhadap Kuat Tekan dan Daya Serap Air Bata Beton Satya Adi Purnama; Tri Sudibyo
Jurnal Teknik Sipil dan Lingkungan Vol. 3 No. 3: Desember 2018
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

The growth of development sector in Indonesia lead a high demand for cement and sand. The research was conducted from February to July 2018 with objectives of analyzing and knowing the influence of mixture of ceramic waste and fly ash on compressive strength and water absorption of paving block. The research was started from preparation of tools and materials, manufactured of specimens and also tested the compressive strength and absorption of paving block. Quality standardwere based on SNI 03-0691-1996. Based on the analysis result, the highest compressive strength of 26.56 Mpa was obtained from paving block with 9% fly ash and 6% ceramic waste and was classified as class B. The highest water absorption of 18.29% was paving block with 15% mixtured of ceramic wastes and the lowest water absorption of 9.65% was normal paving block. Brick concrete with 6% mixture of ceramic waste and 9% fly ash had several advantages, i.e. cheaper cost, had a higher compressive strength and higher water absorption compared to normal paving block, more environmental friendly, had lighter weight and ease of installation. Key words: ceramic wastes, compressive strength, fly ash, paving block, water absorption

Analisis Kinerja Rencana Bundaran dengan Pendekatan Simulasi Mikro Tri Sudibyo; Erizal Erizal; Purwo Mahardi; Muhammad Fauzan; Heriansyah Putra
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Urban road network typically consists of many intersections which commonly lead to traffic problems. In relatively low traffic, a simple priority intersection will be sufficient and lead no traffic problem without necessarily implement traffic lights, roundabout or others. In an urban area where traffic demands are high, intersections need to be treated with an accurate traffic engineering approach. There are many different approaches to reduce the traffic problem in intersection including traffic light, roundabout, or interchange. Cimahpar Raya street and Indobaso intersections are urban areas in Bogor city with the high demand for transportation and often having a congestion problem in peak hour. The Office of Public Works and Spatial Planning (PUPR) of Bogor city plans to develop and change the Indobaso intersection to be a roundabout, while also increasing the lane width of the approaching roads. This study was conducted to assess the performance changes of the Indobaso intersection improvement by developing a traffic model of the intersection. The planned roundabout and lane width improvement significantly reduce the traffic delays by 90,07%, reduce travel time by 51,76%, improve average speed by 83,77%, and reduce the traffic density by 88,54% compared to the current condition of the intersection which lacks required lane road width and maneuver area.Key words: urban road, intersection, traffic model

Analisis Perkiraan Tingkat Pelayanan Jalan (Studi Kasus Rencana Tol Dalam Kota Jakarta Ruas Bekasi Raya) Nidea Novitasari; Tri Sudibyo
Jurnal Teknik Sipil dan Lingkungan Vol. 5 No. 1: April 2020
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

In 2017, Jakarta was ranked as 7th most congested city in the world. To overcome the problem of congestion in Jakarta, the Government implements the construction of road infrastructure through 6 toll roads inside Jakarta City, but the construction causes pros and contra regarding the effects of induced demand. This research aimed to analyze the service level of Bekasi Raya road on existing and toll roads in Jakarta City and analyzing Bekasi Raya road performance after the operation of the toll road and the off ramp impact of toll road. The analysis were conducted based on Indonesian Road Capacity Manual 1997, the Greenshield model, and the Highway Capacity Manual 2000. The result showed that the level of road service in segment 1 was C for Bekasi and D for the Pulogadung direction. In segment 2 the level of service was E for both directions, and in segment 3 the level of service was C. The level of the toll road service was C for both directions. The toll roads construction would increase the level of road service to C and reduce vehicle volume of 64,1% in Bekasi direction and 45,2% for Pulogadung (Jakarta) direction. The off ramp impact was the the toll road would not experience significant congestion until 2035.

Co-Authors Ahmad Fatoni Apriadi, Apriadi Apriliyanto, Rangga Ardiansyah, Rahmat Chusnul Arif Dhia Kamal Irfan Dwi Bangkit Prakoso Dzaky Syifaurrahman Erizal , Erizal . Erizal Erizal Fitri Rohmah Widayanti Hideaki Yasuhara Imam Muthohar Irfan, Dhia Kamal Khuswatun Chasanah Khuswatun Chasanah, Khuswatun Listiana, Novi Mentari, Sekar Muhamad Adlijil Ikram Muhammad Fauzan Muhammad fauzan Naoki Kinoshita Nidea Novitasari Novi Listiana Novitasari, Nidea Prakoso, Dwi Bangkit Purnama, Satya Adi Purwo Mahardi Putra, Heriansyah Rahmat Ardiansyah Ramadhan, Fathur Ramadhanis, Zainab Rangga Apriliyanto Rantelino, Owen Satya Adi Purnama Simanjorang, Bernando Agung Saputra Sutoyo Sutoyo Sutoyo Sutoyo Suwarto, Fardzanela Syifaurrahman, Dzaky Vincent Vincent, Vincent

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