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Ari Sandhyavitri
Civil Engineering Department, Engineering Faculty, Universitas Riau
Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences Transportation Other

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Kinerja Persimpangan Tidak Bersignyal Pada Ruas Jalan Imam Munandar-Bukit Barisan Kota Pekanbaru Raja Andrian Maulana; Ari Sandhyavitri; Sri Djuniati
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Recently the traffic growth in Pekanbaru is fast. The intersection of Imam Munandar Street and BukitBarisan Street has high traffic flow. Therefore, it is necessary to perform a study to analyze theintersection condition to cope with problems related to the performance of unsignalized intersection.The primary data was obtained by collecting real traffic data. The primary data was used in the analysisin accordance with MKJI 1997. The result of the analysis showed that the peak hour was on Tuesday at17:00 to 18:00 WIB, the peak traffic flow (Q) was calculated as 2126.1 smp/hour, the capacity ( C ) was1990.69 smp/h, the degree of saturation ( DS ) was 1.068, the delay of intersecton traffic (DT1) was18.86 sec/smp, the delay of intersection geometry (DG) was 3.94, the intersection delay (D) was 22.80,the queue probability ( QP ) was 45.98%-91.60%. These indicate that the intersection requires evaluationand improvement.Key words: capacity, degree of saturation, delay, queue opportunities, MKJI1997
IDENTIFIKASI TINGKAT KERAWANAN BANDAR UDARA DI INDONESIA Khairumusa, Alfa Roby; Tjahjono, Tri; Sandhyavitri, Ari
Jurnal Transportasi Vol 14, No 1 (2014)
Publisher : Jurnal Transportasi

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Abstract

The first priority in the airport business area is safety because the risks of fatality and death rates causing aircraft accidents are higher compared to those of other transportation modes. There is a need to investigate the rate of hazardous airports in Indonesia using a combination of Empirical Bayesian and Regression by calculating of their safety indicators. Based on the analyses it was identified that the overall safety rate of airports in Indonesia was 2,502 events per 100 thousand aircraft movements and this was classified as Safe/Regulated Systems. There was also identified 10 airports considered as hazardous ones, based on the deviation values from the largest to the smallest, namely Wamena, Hasanuddin, Polonia, Juanda, Soekarno-Hatta, Sultan Syarif Kasim II, Sepinggan, Abdul Rahman Saleh, Hang Nadim, and Depati Amir, respectively. Keselamatan Penerbangan merupakan hal serius karena risiko kematian yang diakibatkan oleh suatu peristiwa kecelakaan pesawat udara relatif tinggi dibandingkan dengan moda transportasi lainnya. Penelitian ini bertujuan menentukan indikator keselamatan penerbangan suatu bandar udara berdasarkan ketentuan International Civil Aviation Organization dan melakukan analisis tingkat kerawanan bandar udara di Indonesia. Penentuan tingkat kerawanan bandar udara dilakukan dengan menggunakan metode kombinasi Emperical Bayesian (EB) dan Regression. Dari analisis yang dilakukan diperoleh tingkat keselamatan penerbangan di bandar udara Indonesia adalah 2.502 kejadian untuk tiap 100 ribu siklus penerbangan atau events dan diklasifikasi sebagai Safe/Regulated Systems. Tingkat kerawanan 10 (sepuluh) bandar udara, disusun berdasarkan nilai devisasi yang terbesar sampai yang terkecil, adalah Wamena, Hasanuddin, Polonia, Juanda, Soekarno-Hatta, Sultan Syarif Kasim II, Sepinggan, Abdul Rahman Saleh, Hang Nadim, dan Depati Amir.
Analisa Perbaikan Sub-Grade Runway Lapangan Terbang dengan Metode Vertical Drain (Studi Kasus Bandara Tempuling di Tembilahan, Propinsi Riau) Sandhyavitri, Ari; Wibisono, Gunawan; Juniati, Sri; Rioputra, M. Dian
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 16, Nomor 3, OKTOBER 2008
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (375.269 KB) | DOI: 10.14710/mkts.v16i3.3697

Abstract

Soil stabilization for the runway sub-grade in Tampuling Airport, Tembilahan, Riau province is required as the existing soil is in the grouped of peat or soft soil. The compressibility rate of this soil is very height, with the depth of the soft soil of more than 30 meters from its surface. Based on “the worst case scenario” without any soil stabilization treatment, it was estimated that the soil consolidation rate would be 1.7 metre within 20 years period of settlement. In order to speed up consolidation process, the vertical drain method was applied. Design of pre loading technique as well as the calculation of distance between vertical drains is then demonstrated in this paper. It was estimated that the depth of vertical drain would be 18 metres, with the distance between vertical drains is 1.2 metres each; height of pre loading is 4.5 metres. With these design parameters, it was expected that the settlement process would be accelerated by 40 folds (235 months to become 6 months period). Keywords: Vertical Drain, Pre-Loading, Settlement, Consolidation, Sub-Grade. ABSTRAK Perbaikan sub-grade untuk menopang perkerasan lentur runway bandara Tampuling di Tembilahan, Propinsi Riau perlu dilakukan karena sub-grade nya terdiri atas lapisan tanah gambut dan tanah lunak. Tanah ini mempunyai kriteria sebagai tanah dengan tingkat kompresibilitas tinggi mencapai kedalaman 30 m. Berdasarkan skenario terburuk, setelmen konsolidasi tanpa ada perbaikan tanah (sub-grade) akan terjadi sebesar 1,7 meter dalam 20 tahun (235 bulan). Upaya untuk mempercepat konsolidasi dilakukan dengan memasang drainase vertikal (vertical drain). Perencanaan tinggi pre-loading, dan spasi drainase vertikal berikut kedalamannya mempengaruhi proses kecepatan konsolidasi dianalisa. Hasil perencanaan yang diusulkan adalah sebagai berikut; (i) kedalaman drainase vertikal = 18 m;(ii) spasi antar drainase = 1,2 m; dan (iii) tinggi preloading = 4,5 m. Setelmen yang direncanakan dapat dipercepat sebesar 40 kali dari semula 235 bulan menjadi sekitar 6 bulan.Kata Kunci : Drainase Vertikal, Preloading,  Setelmen, Konsolidasi, Tanah Dasar/Sub-gradePermalink: http://ejournal.undip.ac.id/index.php/mkts/article/view/3697[How to cite: Sandhyavitri, A., Wibisono, G., Juniati, S. dan Rioputra, M.D. (2008), Analisa Perbaikan Sub-Grade Runway Lapangan Terbang dengan Metode Vertical Drain (Studi Kasus Bandara Tempuling  di Tembilahan, Propinsi Riau), Jurnal Media Komunikasi Teknik Sipil, Tahun 16, Nomor 3, pp. 231-242]
ANALISA KELAYAKAN TARIF AIR BERDASARKAN PENGEMBALIAN BIAYA PENUH DAN SENSITIVITAS NPV Sandhyavitri, Ari; Herlina, Dewi
Eco Rekayasa Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The objectives of this research study were to : (i) investigate how much water tariffs should be paid by consumer in order to serve the project investement and operation based on the full cost recovery schemes, and (ii) investigate sensitivity factors affeted to project NPV.  This study fokus on the Dumai,water development project, Riau Province. The project investment was approximatelly Rp. 82,34 billion  (Alternative 1 for water treatment facility of 80 l/sec) and Rp. 134,308 million (Alter-native 2 for watar treatment facility of 160 l/sec) for 25 years. Based on the  economic analysis, it was revealed that; the Net Present Value (NPV) of  the alternative 1 project was Rp. 4.4 billion (with water tariffs of Rp. 7.000,-/m3 for a household and Rp 9.000,-/m3 for an industrial sector), BCR =  1,135, and IRR = 16,829 %.  This IRR value is higher then bank interst rate (12%). Alternative 2 will yield NPV of 40 billion (with tariff of Rp. 5.700,-/m3 for Household and Rp . 8.000, -/m3 for an industrial sector), BCR= 1,122 and IRR = 16,433 % . Based on these economic analysis, this project was considered feasible to proceed. The factors that are relatively sensitive for the NPV of project were; chemicals, electricity and fuel, staff salaries, and interest rates.
ANALISIS KESEDIAAN MASYARAKAT UNTUK MEMBAYAR (Willingness to Pay) BIAYA PENGADAAN AIR BERSIH (PDAM) DI KOTA PEKANBARU Sandhyavitri, Ari; Putri, Nessa Riana; Fauzi, Manyuk; Sitikno, Sigit
Jurnal Teknik Sipil dan Perencanaan Vol 18, No 2 (2016): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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Abstract

This paper investigated how much the publics willingness to pay (WTP) for the cost of public water supply services (PDAM) in Pekanbaru City. This research also projected how much urban water demand of this city for period of 2014-2032. This study divided samples into two categories, namely (i) middle and high income society, and (ii) low income one. These categories were based on the type of house ownership, and the percentage of low income family in this city This research obtained two main factors affected to the WTP for public water services (Y), such as; (i) the number of family members (X1), and (ii) the amount of family income (X2). The equation formula of Y = -677.816 + 12934.502 X1 + 0.012 X2. The average public’s willingness to connect to PDAM for the middle and high income society was 62.13% and for the lower class was 44.44%.There was a trend that the middle and high incomes society’s water demand was relatively higher than that the lower one.  The amount of water tariffs for middle and high income class society was at the average of Rp.6.615 / m3, and Rp.4.971/m3 for the lower income one. This tariff was higher than the average tariff in 2014 (Rp. 3,300 / m3). The water supply capacity in 2014 was estimated to 620 l/sec, and it was projected that water demand in 2032 will increase to 3,946 l/sec (three folds). Tulisan ini meneliti berapa besar keinginan masyarakat untuk membayar biaya pelayanan pengadaan air bersih (PDAM) di Kota Pekanbaru dan membuat proyeksi kebutuhan air bersih Kota Pekanbaru 2014-2032. Sampel calon pelanggan air bersih dalam penelitian ini dibagi atas dua kategori, yaitu (i) masyarakat kelas menengah keatas, dan (ii) kelas menengah kebawah. Penelitian ini mengidentifikasi dua faktor utama yang mepengaruhi keinginan masyarakat menengah ke atas membayar pelayanan air bersih PDAM (Y), yaitu; (i) jumlah anggota keluarga (X1), dan (ii) besarnya pendapatan keluarga (X2), dengan formula Y= -677,816 + 12934,502 X1 + 0,012 X2. Keinginan untuk menyambung pada masyarakat menengah keatas sebesar 62,13% dan di kelas menengah kebawah adalah 44,44%. Besarnya tarif air bersih yang diinginkan masyarakat menengah keatas Rp.6.615/m3 dan Rp.4.971/m3 untuk kelas menengah kebawah.Tarif ini lebih tinggi dari rata-rata tarif PDAM pada tahun 2014 yaitu Rp. 3.300/m3.Kapasitas pasokan PDAM air pada tahun 2014 adalah 620 l/detik, namun diproyeksikan kebutuhan air bersih meningkat menjadi 3.946 ll / detik untuk tahun 2032.
Analisis Pengaruh Perubahan Tata Guna Lahan Terhadap Ketersedian Air Di Daerah Aliran Sungai (Das ) Siak, Provinsi Riau Muhammad Iqbal, Ari Sandhyavitri Sigit Sutikno
Jurnal Teknik Sipil Vol 13, No 2 (2015)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1291.771 KB) | DOI: 10.24002/jts.v13i2.972

Abstract

Tujuan penelitian ini adalah untuk mengembangkan model hidrologi yang mampu mewakili siklus hidrologi DAS Siak, Provinsi Riau, dan untuk menghitung ketersediaan air pada DAS tersebut.. Studi ini mengembangkan model hidrologi dengan bantuan software Soil and Water Assessment Tool (SWAT). Perubahan penggunaan lahan berkelanjutan selama periode 10 tahun (2002-2012) dalam DAS Siak yang dianalisis berdasarkan pengolahan oleh citra satelit. Berdasarkan penelitian ini, koefisien determinasi optimal (R2) yang diperoleh dari model keluaran SWAT adalah sebesar 0,59, dengan Nash-Sutcliffe Efisiensi (NSE) adalah 0,58. Koefisien determinasi (R2) untuk model validasi sebesar 0,55 (> R2min 0,4), dan NSE adalah 0,48 (> NES min 0,36). Tingkat ketersediaan air selama periode 2002-2012 (Qmax / Qmin) secara berurutanmasing-masing sebesar 10,72 (2002), 6,83 (2007) dan 12,95 (2012). Karena diperoleh rasio Qmax / Qmin makin tinggi dari tahun ke tahun yang mengindikasikan ketersediaan air yang makin kritis. Hal tersebut menggambarkan perubahan penggunaan tata guna lahan di DAS Siak mempengaruhiketersediaan sumber daya air.
IDENTIFIKASI TINGKAT KERAWANAN BANDAR UDARA DI INDONESIA Sandhyavitri, Ari; Tjahjono, Tri; Khairumusa, Alfa Roby
Jurnal Transportasi Vol 14, No 1 (2014)
Publisher : Jurnal Transportasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.24 KB) | DOI: 10.26593/jt.v14i1.1373.%p

Abstract

The first priority in the airport business area is safety because the risks of fatality and death rates causing aircraft accidents are higher compared to those of other transportation modes. There is a need to investigate the rate of hazardous airports in Indonesia using a combination of Empirical Bayesian and Regression by calculating of their safety indicators. Based on the analyses it was identified that the overall safety rate of airports in Indonesia was 2,502 events per 100 thousand aircraft movements and this was classified as Safe/Regulated Systems. There was also identified 10 airports considered as hazardous ones, based on the deviation values from the largest to the smallest, namely Wamena, Hasanuddin, Polonia, Juanda, Soekarno-Hatta, Sultan Syarif Kasim II, Sepinggan, Abdul Rahman Saleh, Hang Nadim, and Depati Amir, respectively. Keselamatan Penerbangan merupakan hal serius karena risiko kematian yang diakibatkan oleh suatu peristiwa kecelakaan pesawat udara relatif tinggi dibandingkan dengan moda transportasi lainnya. Penelitian ini bertujuan menentukan indikator keselamatan penerbangan suatu bandar udara berdasarkan ketentuan International Civil Aviation Organization dan melakukan analisis tingkat kerawanan bandar udara di Indonesia. Penentuan tingkat kerawanan bandar udara dilakukan dengan menggunakan metode kombinasi Emperical Bayesian (EB) dan Regression. Dari analisis yang dilakukan diperoleh tingkat keselamatan penerbangan di bandar udara Indonesia adalah 2.502 kejadian untuk tiap 100 ribu siklus penerbangan atau events dan diklasifikasi sebagai Safe/Regulated Systems. Tingkat kerawanan 10 (sepuluh) bandar udara, disusun berdasarkan nilai devisasi yang terbesar sampai yang terkecil, adalah Wamena, Hasanuddin, Polonia, Juanda, Soekarno-Hatta, Sultan Syarif Kasim II, Sepinggan, Abdul Rahman Saleh, Hang Nadim, dan Depati Amir.
Evaluasi Area Kawasan Keselamatan Operasi Penerbangan (KKOP) Akibat Perubahan Panjang Runway (Studi Kasus : Bandar Udara Internasional Sultan Syarif Kasim II Pekanbaru) Nur Ihsan; Ari Sandhyavitri; Sri Djuniati
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The objective of the study was to evaluate and to calculate the required the existing 2016 and ultimate 2035 KKOP of Sultan Syarif Kasim II International Airport Pekanbaru. The KKOP area was drawn using ArcGIS Software package, the calculation was carried by using ICAO Manual Standard Annex 14 2013, Ministry Decree Number 60 2004 and Number 3 2016. It is identified that Approach and Take Off Surface in 2016 = 155 meters AES and in 2035 = 152 meters AES, the elevation for inner horizontal surface in 2016 = 50 meters AES and in 2035 = 47 meters AES , the discreapancy for both approach surface elevation of 1,97% to 6,38% for inner horizontal surface. It is also identified that runway length in 2016 = 2.600 meters will be extended to 3.000 meters in 2035, than area of inner horizontal in 2016 = 34.783.800 m2 became in 2035 = 50.300.000 m2, it’s not necessary the change of runway length from 2016 to 2035 affected to unincreased in KKOP elevation usualless KKOP distance length.Key Word: Sultan Syarif Kasim II International Airport, Obstacle Limitation Surface, AES
Analisa Sensitivitas Parameter - Parameter Yang Mempengaruhi Rencana Anggaran Biaya (RAB) Perumahan Cluster Di Pekanbaru (Studi Kasus Perumahan Sari Residence) Luse Benita; Ari Sandhyavitri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Pekanbaru is one of the provincial capital in Indonesian that has rapid population growth about 4%  each year. One of thedevelopment thing is the rapidly growing field of building construction, especially in the field of housing.  Free trade competition in which the selling price as set by the government.  It is necessary to identify the parameters that affect the Budget Plan (RAB) in Type of Cluster House development.  Sensitivity analysis is needed to determine how sensitive a decision to change the parameters that influence it.  Criteria of the largest costs incurred is the cost of home work better than the average yield response of respondents as well as seen from the calculation of the RAB. RAB calculations obtained percentage of the cost of homework on the overall total cost for one (1) of housing units is 61.64%. Retrieved parameters that affect as many as 12 parameters namely: Wall Working, Roof Working, foundation working, concrete working, vast excess soil, deed of sell, Building Permits, Ownership Certificate, Electrical installation, Water Treatment Plan, Mainroad. So we need antisipasif action against these parameters. Keywords: Developer, Budget Plan (RAB), Type of Cluster House, Sensitivity
Identifikasi Parameter Signifikan Dalam Penentuan Prioritas Rencana Pengembangan Daerah Irigasi (DI) Kabupaten Rokan Hulu Rumeisyah, Rumeisyah; Sandhyavitri, Ari; Fauzi, Manyuk
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Rokan Hulu is one of districts that are members of the Operasi Pangan Riau Mandiri program (OPRM) which is a program implemented by the Riau Province in order to achieve self-sufficiency in rice for the Riau Province in 2013. To support the program, the governments of Rokan Hulu sought to develop rice fields irrigated area. Under budget constraint it is necessary to identify priority in the development plan for the irrigation area.This research discusses prioritization approache in developing of the irrigation areas based from the Analytical Hierarchy Process (AHP) method. Five criteria for development of the irrigation areas are prioritited as follow: technical aspec, economic, environmental, social/cultural and institutional.The results of the AHP analysis obtained the significant parameters as the following order: institutional (45,0%), technical criteria (21,9%), economic criteria (18,6%), Social/Culture criteria (8,6%), and environmental criteria (5,9%). The significant sub-criteria as the following order: the performance of farmer groups P3A, the condition and function of irrigation channel, availability of rehabilitation funds from local government (APBD), the availability of farmers implementing and availability of water resources. The significant irrigation areas are prioritited as follow Kaiti Samo irrigation area (56,9%)I, Menaming irrigation area (19,7%)II, Palis irrigation area (14,2%)III, Perak irrigation area (9,3%)IV.Keywords: analytical hierarchy process, Irrigation areas, Priority, Rokan Hulu
Co-Authors A.A. Ketut Agung Cahyawan W Aditya Sukrama Afdhal Suzalici Putra, Afdhal Suzalici Agus Ika Putra Aidillah Fitria Alfa Roby Khairumusa Alfian Malik Alfian Malik Alfian Malik Andi Asri Permatasari Andy Hendri Antos Gazali Ardiminsyah Ardiminsyah Aris Fadillah Arvin Arvin Arvin Arvin Bambang Siswanto Bambang Sujatmoko Bismo Anggoro Brian Charles S Copricon, Deby Elfi David, Muhammad Dehas Abdaa Dewi Herlina Dewi Herlina Dewi Herlina, Dewi Dilla Kartika Edwar AR Elianora Elianora Elianora, Elianora Erizal ' Fajar Restuhadi Fajar Restuhadi Fajri Rahmatullah Fakhri Fakhri Fatiha Nadia, Fatiha Febrizal, Febrizal Ferry Anggriawan Ferry Fatnanta Fian Syauqi Fiqri Fansyuri Saragih Fri Murdiya Galuh Rahmadyarto Ginda Burnama Gunawan Wibisono Guspi, Guspi Harnedi Maizir Helfira, Nany Hendra Agustian Hendra Taufik Hendra Taufik Herdiansyah Herdiansyah Ilvi Rahmi Amalia Imam Suprayogi Indah Kamelya Shifa, Indah Kamelya Indra Kuswoyo Irvan A Iswadi Hasyim Rosma Iswadi Hasyim Rosma Ito Tandika Jhon Hadi Kusuma Lita Darmayanti Luse Benita M Galang Rosyandi M Nurmandra Muas M. Dian Rioputra M. Fajar Anwika Malau, Natalia K Manyuk Fauzi Marbun, Douglas Mardan Fajri Mariani Damanik Mashuri Mohtar Anwar Moulana Rizaldi Mufriadi Mufriadi Muhamad Azizi Muhamad Yusa Muhammad Ikhsan Muhammad Ikhsan Muhammad Ikhsan Muhammad Iqbal Muhammad Zulfiqar Mutia Ananda Perdana Naswandi wanto Nessa Riana Putri, Nessa Riana Niko Saputra Nur Ihsan Prasetia, Bayu Reski Raja Andrian Maulana Rama Dwi Aryandi Reni Suryanita Riau Satrya Alamsyah Rifky Ichsan Riya Nisa Putri Rizki Ramadhan Husaini Rizki Sahputra Roma Dearni Rumeisyah, Rumeisyah Satrya Alamsyah, Riau Sigit Sitikno, Sigit Sigit Sutikno Siswanto Siswanto Sitompul, Iskandar R Soewignjo Agus Nugroho Sri Djuniati Sri Djuniati Sri Juniati Suandi, Oki Suwitno Syifa Yulita Tri Tjahjono Vito Charly Yogi Guntara Zulfahmi Zulfahmi Zulfikar Djauhari Zulkarnain Yusuf